# Astra reference notes

[Astra](../versions/astra.html) is an independent rendition of the full [62-piece catalog](watch-face-catalog.md). Its interface, time engine, SVG toolkit, and watch drawings were authored from scratch. Earlier model pages and the active working build are preserved.

Supplied photographs were inspected for case shape, proportions, dial print, markers, hand geometry, apertures and material finish. Manufacturer, museum and dealer images supplement missing references and identify catalog-specific variants. Photographs are research material only; the shipped page contains SVG geometry and no raster watch faces or external dependencies.

The drawings approximate reflected light, brushing, engraving and dial textures with vector geometry. Very small lettering and brand artwork are simplified. The watches show the selected city's time and calendar through the browser's IANA time-zone data. GMT hands show UTC. Chronograph controls measure elapsed time in this browser; power-reserve and complex astronomical mechanisms are visual studies, not instrument simulations. Historical objects whose exact reference could not be verified are identified below.

## Everyday watches and the railway clock

| Face | Reference basis and details |
| --- | --- |
| Swatch Once Again | Swatch GB743 product details and dealer front/profile photographs: black polymer Gent case, fine white dial, Arabic numerals, split day/date and magnifying crystal. |
| Braun BN0021 | Braun's white-dial, black-leather product photograph: very thin steel bezel, long minute graduations, restrained numerals, fine black hands and yellow seconds. |
| Mondaine Swiss Railway | Mondaine stop2go 41 mm white dial on steel bracelet: crownless brushed case, raised flange, squared railway hands and red signal-disc seconds. Seconds complete the circuit in 58 seconds and pause at twelve until the minute advances. |
| Rolex Trackside | Supplied trackside-clock close-up: wide fluted gold bezel, white dial, green rectangular indices and hands, applied coronet and large green Rolex print. |
| Hamilton Khaki Field Mechanical | H69439931 manufacturer specification and exact-reference dealer photograph: matte steel, olive woven NATO, black dial, 12/24-hour scales, triangular aged lume and syringe hands. |
| Hamilton Khaki Field King | H64455533 manufacturer specification and retailer photographs: steel crown guards, black concentric dial, full weekday above date at twelve, silver hands and stitched brown leather. |
| Casio MQ-24 | Casio MQ-24-7B2LL product details and dealer photograph: light resin case, molded strap, large black numerals, dotted minute track and thin hands. |
| Timex Easy Reader | Timex T20041 product photograph: polished case, brown stitched leather, bold numerals, day/date, red seconds and INDIGLO illumination. The inspection view includes a dial-light control. |

Primary product sources: [Swatch](https://www.swatch.com/en-gb/once-again-gb743-s26/GB743-S26.html), [Braun](https://braun-clocks.com/products/gents-bn0021-classic-watch-white-dial-and-black-leather-strap), [Mondaine](https://mondaine.com/products/stop2go-watch-stainless-steel-4101b-sj-2se), [Hamilton Mechanical](https://www.hamiltonwatch.com/en-us/h69439931-khaki-field-mechanical.html), [Hamilton King](https://www.hamiltonwatch.com/en-us/h64455533-khaki-field-kingauto.html), [Casio](https://www.casio.com/us/watches/casio/product.MQ-24-7B2LL/p/), [Timex](https://timex.com/products/easy-reader-day-date-35mm-leather-strap-watch-t20041).


## Sport and chronograph references

All 18 renderers were authored independently for Astra using the new shared SVG toolkit. No existing model implementation page was read or copied. The renderers contain vector geometry and dial lettering; the supplied photographs are reference material only.

| Face | Reference basis and details checked |
| --- | --- |
| Submariner | Supplied 126610LN front and close-up photographs: black ceramic bezel, inward zero triangle, Maxi dial, Mercedes hour, Cyclops, Oyster case and bracelet. |
| Speedmaster | Supplied 310.30.42.50.01.001 front and case close-ups: lyre lugs, asymmetric case, pump pushers, stepped black dial, 9-o'clock running seconds, 3/6 chronograph counters and thin white hands. Tachymeter graduations use the physical elapsed-time relationship. |
| Seamaster | Supplied blue Diver 300M photographs: wave dial, blue bezel, left helium valve, double twelve batons, skeleton hands, red-tipped seconds, six-o'clock date and five-section bracelet. |
| Daytona | Supplied 126500LN white-dial photographs: black ceramic bezel, dark counter rings surrounding white registers, screw pusher profile, applied indices and black/red dial printing. |
| GMT-Master II | Supplied 126710BLRO photographs: blue upper and red lower ceramic bezel, radial 24-hour numerals, red GMT arrow, black dial, Cyclops and Oyster bracelet. |
| Datejust | Supplied mint-green steel Datejust with fluted bezel and Jubilee bracelet. The public catalog does not fix a Datejust reference, so this clearly pictured colorway is used. Checked sunray dial, fluted facets, applied coronet and date lens. |
| Black Bay Fifty-Eight | Supplied black/gilt Fifty-Eight photographs: red bezel triangle, warm dial printing, gilt marker surrounds, snowflake hour hand and unguarded crown. |
| Navitimer | Supplied black-dial/silver-register B01 photos and macro: logarithmic inner and outer slide-rule scales, beaded bezel, winged logo, silver registers and red chronograph hand. |
| Chronomaster Sport | Exact 03.3100.3600/69.M3100 manufacturer product specification and front photograph (also available through Art of Time): white dial; overlapping silver, blue and charcoal registers; diagonal date; ten-second central chronograph; polished ceramic scale and pump pushers. |
| Explorer | Supplied 124270 front photos: polished smooth bezel, luminous 3/6/9, twelve triangle, simple dial text and Mercedes hand. |
| Fifty Fathoms | Exact 5015 1130 71S manufacturer front photograph: bulbous sapphire bezel, 15/30/45 numbering, 12/3/6/9 dial numerals, tapered indices, layered black dial, broad sword hands and diagonal date. |
| Type XX | Supplied 2067ST-92-3WU front photograph: steel 12-hour bezel, tan strap, cream Arabic numerals, asymmetric register sizes, fifteen-minute right counter and diagonal date. |
| Carrera | Supplied CBN2011_BA0642 front photograph: blue dial, slim polished bezel, applied baton indices, three blue recessed counters and six-o'clock date. |
| Silver Snoopy Award | Supplied 310.32.42.50.02.001 close-up/front photos: silver main dial, blue registers and tachymeter, fabric strap, blue hands, astronaut Snoopy medallion and small running-seconds hand above it. |
| Milgauss | Supplied Z-Blue comparison photographs plus close-ups of the shared case and lightning hand: turquoise sunray dial, green sapphire edge, orange lightning seconds, orange printing and polished bezel. |
| Yacht-Master II | Exact supplied m126680-0001 front photos. This reference has a conventional blue 10/20/30/40/50 bezel, a dial-side 0–10 regatta ring, round luminous markers and Mercedes hour hand. The older 116680 horseshoe layout was deliberately not substituted. |
| Rainbow Daytona | Supplied 116595RBOW front photograph: Everose case/bracelet, graduated baguette rainbow bezel and markers, diamond-set lugs, black dial and warm metallic registers. |
| Jorg Gray | Supplied JGC6500 Secret Service Edition owner close-ups: narrow polished bezel, dark dial, emblem at twelve, three registers, diagonal date, black leather and brushed luminous hands. |

## Supplemental public sources

- [Zenith Chronomaster Sport product reference](https://www.zenith-watches.com/en_us/product/chronomaster-sport-03-3100-3600-69-m3100)
- [Zenith technical press sheet](https://pressroom.zenith-watches.com/app/uploads/2021/01/ZENITH-Chronomaster-Sport_ENG-1.pdf)
- [Art of Time front product photograph](https://artoftimeindia.com/products/chronomaster-sport-03-3100-3600-69-m3100)
- [Blancpain Fifty Fathoms exact product reference](https://www.blancpain.com/en/fifty-fathoms/fifty-fathoms-automatique-5015-1130-71s)

## Intentional approximations

Sapphire reflections, brushed metal, leather, sunray surfaces and gem facets are analytical SVG approximations rather than optical simulations. Small logos and the Snoopy/Secret Service artwork are redrawn silhouettes and linework. Microprinting and register subdivisions are simplified where necessary to remain coherent at card size. Chronograph displays use the application's elapsed-time controls; they do not claim to simulate movement mechanics.

## Renderer validation

- All 18 draw functions execute against the shared toolkit with no undefined or NaN output.
- An isolated Chromium gallery rendered all 18 with no runtime errors and no duplicate SVG IDs.
- A full gallery capture was visually inspected at 10:10 with seconds and GMT hands away from twelve.
- Main and register hands use explicit pivots; all date apertures have unique clip paths.
- The assembled application is checked for live time, timezone and date boundaries, chronograph controls, interactions, and mobile layout.

## Binding details

`regatta` is a 10-minute reverse countdown across the Yacht-Master II's 300-degree scale. `hour24` is the Jorg Gray right-hand 24-hour time register. The Type XX right elapsed-minute register requests a 900-second revolution; the Zenith lower and Jorg Gray left registers request 3600 seconds. Zenith's main chronograph uses a 10-second revolution while its right register uses 60 seconds. Every ordinary chronograph is at rest until the application's elapsed-time control starts it.


## Astra distinctive timepieces

All seventeen drawings were authored as SVG geometry for Astra. No other model’s HTML, drawing code, or rendered watch output was read or reused. Common Astra material gradients are used for lighting; case shapes, printing, indices and complications are specified per object.

| Key | Photo basis and modeled details | Limits of the study |
| --- | --- | --- |
| `gshock` | Casio’s official DW-5600UE-1 product photograph: stepped square resin protector, screw recesses, four buttons, pale green LCD, cyan printing and recessed display. Working seven-segment hours, minutes and seconds. | The local reference folder was empty; official image substituted. |
| `f91w` | Casio’s official F-91W-1 close-up: thin beveled resin case, blue and gold display border, WR shield, three steel buttons, smaller seconds and separate day/date. | The local reference folder was empty; official image substituted. |
| `apple` | Series 7 Midnight Contour product imagery: softly rounded black case, crown fluting, edge glass reflection, stretched cardinal numerals, continuous seconds. | Catalog does not specify a generation. Chosen interpretation is Series 7 Midnight with Contour; typography is drawn with browser fonts. |
| `seiko5` | Local Seiko 5 Sports SRPD51 product/review images: blue dial and elapsed bezel, Seiko 5 shield, 4 o’clock crown, mixed luminous indices, broad arrow hands, day/date aperture and three-link bracelet. | Macro movement engraving is simplified. |
| `richardmille` | Local RM-011 Felipe Massa front photographs: titanium tonneau bezel, spline screw placements, skeleton baseplate and bridges, three chronograph counters, large date and month aperture, rubber band and colored pusher accents. | Skeleton movement is a visual construction, not an engineering model. Chronograph values use the app’s running time model. |
| `bigbang` | Local Hublot Big Bang Unico images for architecture: six H screws, ceramic ring, lateral pushers, black band, layered open dial and two counters; Red Magic color follows the catalog variant. | The exact Red Magic colorway was absent from the supplied photos. Internal movement bridges and engraving are interpreted. |
| `br03` | Bell & Ross official BR-03 Black Matte photograph: ceramic square case, round inner bezel, four large screws, bold cardinal numerals, luminous sword hands and angled date position. | The local reference folder was empty; official image substituted. |
| `twinbell` | Local Westclox 70010A white-background product image: metal bells, elevated arch handle, striker, angled feet, white dial, serif numerals and luminous black hands. | Alarm set pointer is a decorative fixed feature. Time hands and seconds are live. |
| `bigben` | UK Parliament’s restored blue-dial image: Prussian-blue Roman chapter ring, gilded Gothic spandrels, white radial glass, ornate blue hands and masonry surround. | Tracery is redrawn at display scale. The clock is represented by its dial bay, not the complete tower. |
| `grandfather` | A nineteenth-century Comtoise museum photograph supplied the enamel Roman dial and ornate repoussé brass surround. A provincial wood longcase and glazed pendulum door were constructed around it. | The supplied folder was empty; the catalog’s precise Musée du Temps object was not independently identified. Treat the longcase as a period study, not a verified replica of that individual accession. |
| `howardmiller` | Local Howard Miller grandfather-clock photographs: split pediment, central finial, fluted pillars, moon arch, engraved brass/silver dial, three suspended weights, glazed door and live pendulum. | Local images span several related cases; Chateau model-specific proportions and exact engraving are interpreted. Moon arch is decorative rather than an astronomical ephemeris. |
| `orloj` | Local Prague close-up images: stone bay, restored blue/orange/black astrolabe, double Roman scale, twenty-four-hour outer scale, zodiac/ecliptic ring, Earth, gold solar pointer and two-tone lunar sphere. | Solar/lunar motion is an illustrative time model. It does not calculate Prague sidereal time, historical unequal hours, sunrise or lunar orbital geometry. |
| `freak` | Local black Freak X front image with Carb case material interpreted from catalog: textured dark case, raised indices, rotating skeleton minute carousel, balance wheel, open bridge and separate short hour pointer. | Decorative gears do not simulate an escapement; the full carousel rotates once per hour. |
| `railroad` | Auction photograph of a Norfolk Southern gold hunter pocket watch: black logo dial, speed lines and thoroughbred mark, gold case, opening cover and pendant bow. | The local folder was empty. Auction photo identifies the Norfolk Southern design, but the exact 1994 variant was not independently verified. |
| `grandcentral` | Local 1913 information-booth clock photographs: warm opal dial, partial neighboring dials, cast brass globe, acorn finial, beaded collar and fluted pedestal. | Side-dial geometry is a perspective interpretation. Main opal face shows live time. |
| `mickey` | Local 1933-style Ingersoll front close-up: aged enamel, wire lugs, black leather, red shorts, yellow gloves/shoes and three-Mickey seconds disc. The character’s arms are the live hour/minute hands. | Character details are custom vector paths at watch scale. The small seconds disc rotates; no raster image is embedded. |
| `bigtic` | JR-7845 resale photograph: broad steel bracelet and case, domed dark blue dial, large pale digital seconds beneath two plain analog hands. | Local reference folder was empty. Large seconds are browser-rendered numerals; animation is one numerical change per second. |

External reference pages used where local images were absent:

- [Casio DW-5600UE-1](https://www.casio.com/uk/watches/gshock/product.DW-5600UE-1/)
- [Casio F-91W-1](https://www.casio.com/europe/watches/casio/product.F-91W-1/)
- [Bell & Ross BR-03 Black Matte](https://bellross.com/en-my/products/br-03-black-matte-rubber-strap)
- [UK Parliament Elizabeth Tower, restored dial photograph](https://learning.parliament.uk/en/session-workshop/learn-live-elizabeth-tower/)
- [Saarland Clock Museum Comtoise](https://guide.uhrenmuseum.saarland/monitor3/comtoise/)
- [Norfolk Southern pocket watch auction photograph](https://www.liveauctioneers.com/price-result/norfolk-southern-pocket-watch/)
- [Fossil Big Tic JR-7845 resale photograph](https://www.ebay.co.uk/itm/335369731420)
- [Apple Watch Series 7 Contour product imagery](https://www.au.com/apple-watch/product/apple-watch-series-7/)

Verification: JavaScript syntax checked; all 17 render functions executed without undefined/NaN values; all SVGs rendered through Quick Look and inspected in three contact sheets, then the revised character, skeleton, astrolabe and longcase drawings were rendered and inspected again.

Integration: Digital roots use `data-lcd="hms"`, six `data-digit-index` groups and `data-segment="a"` through `g`. DW-5600 additionally uses `data-field="monthdate"` (M-DD). Mechanical hands specify their own `data-pivot`; `pendulum`, `solar` and `lunar` are explicit animation hooks.


## Astra dress, integrated, and shaped watch studies

All 19 dress, integrated, and shaped renderers embedded in `versions/astra.html` are new SVG drawings. No other model's HTML, renderer, or page code was read or reused. The repository catalog supplied the face keys, full names, and cadences. Shared low-level primitives are private to this new module, and every paint/clip ID is prefixed with the draw instance ID plus `-dr-`.

### Reference decisions

| Face | Visual reference and specific treatment |
| --- | --- |
| Nautilus | Local Nautilus photos supplied porthole/ear geometry and the integrated bracelet. Those photos show Tiffany 5711 variants; the drawing instead follows the catalog's [5811/1G-001](https://www.patek.com/en/collection/nautilus/5811-1g-001): blue embossed dial with a dark rim, white-metal case, framed date, luminous rounded baton hands. |
| Royal Oak | Local blue three-hand Royal Oak and black-dial case closeups supplied octagonal bezel, eight screws, Grande Tapisserie relief, paired 12 marker, and articulated bracelet geometry. The catalog reference is the blue 15510ST.OO.1320ST.06. |
| Calatrava | [Official 5227G-015](https://www.patek.com/en/collection/calatrava/5227g-015): rose-gilt opaline dial, charcoal obus indices and dauphine hands, white-gold case, chocolate alligator strap. No matching local image folder was available. |
| Tank | [Official WGTA0342](https://www.cartier.com/en-ca/watches/collections/tank/tank-louis-cartier-watch-CRWGTA0342.html): small yellow-gold quartz Tank Louis, silver dial, gold brancards, sapphire cabochon, blued sword hands; correctly has no seconds hand. Case aspect is based on 29.5 × 22 mm. |
| Reverso | The catalog does not identify a reference. The drawing selects a silver Classic Small Seconds interpretation, informed by the [official Q3858524 description](https://www.jaeger-lecoultre.com/us-en/watches/reverso/reverso-classic/reverso-classic-monoface-small-seconds-q3858524): rectangular case, triple gadroons, Arabic numerals, central guilloché, blue hands, rectangular small-seconds track, brown strap. |
| Lange 1 | The catalog leaves the reference unspecified. The selected interpretation is [pink-gold 191.032](https://www.alange-soehne.com/sg-en/timepieces/lange-1/lange-1/lange-1-in-750-pink-gold-191-032), with offset hour/minute dial, separate running seconds, twin-window date, and AUF/AB reserve sector. |
| Portugieser | The catalog leaves the reference unspecified. The selected interpretation is [IW371605](https://www.iwc.com/eu-en/watches/portugieser/iw371605-portugieser-chronograph): silver dial, blue applied Arabic numerals/leaf hands, vertical recessed chronograph registers, blue leather. |
| Snowflake | Local `SBGA211_dial.jpg`, `SBGA211.png.webp`, and macro photos: pale textured dial, faceted markers, blue sweep seconds, date at 3, reserve sector at approximately 8, titanium-colored case/bracelet. The Snowflake texture is drawn and intentionally subdued. |
| Monaco | [Official CAW211P.FC6356](https://www.tagheuer.com/us/en/timepieces/collections/tag-heuer-monaco/39-mm-calibre-11-automatic/CAW211P.FC6356.html): square blue dial, left crown, right chronograph pushers, white square registers, red chronograph hand, horizontal indices, perforated black leather. |
| Luminor | [Official PAM03312](https://www.panerai.com/en/collections/watch-collection/luminor/pam03312-luminor-marina.html): cushion case and crown bridge, black sandwich-style dial, only LUMINOR MARINA dial signature, silver small seconds at 9, enlarged black date at 3, black leather. |
| Villeret | The catalog leaves the reference unspecified. A traditional rose-gold/white complete-calendar interpretation follows Blancpain's [documented collection](https://www.blancpain.com/sites/default/files/documents/2020-05/Villeret%20Quantie%CC%80me%20Complet_6264_EN.pdf): stepped bezel, Roman indices, day/month windows, serpentine blue date pointer, moon aperture. |
| Overseas | Local Overseas photos supplied bracelet and bezel details. [Official 4520V/210A-B128](https://www.vacheron-constantin.com/ae/en/collections/overseas/4520v-210a-b128.html) confirms the blue sunburst dial, Maltese-cross-shaped bezel/bracelet motifs, applied luminous indices and date at 3. |
| PRX | [Official T137.407.11.041.00](https://www.tissotwatches.com/en-sg/T1374071104100.html): blue waffle dial, broad integrated bracelet, brushed tonneau body, round polished bezel, white date. |
| Marine Torpilleur | Local Marine Chronometer/Torpilleur photos supplied dial layout; [official 1182-310/42](https://www.ulysse-nardin.com/en-eu/watches/marine/1182-310-42) supplied catalog-specific rose gold/leather configuration. Fluted bezel, Roman dial, 12-o'clock reserve, 6-o'clock seconds/date, blue leaf hands. |
| Patek perpetual chronograph | Local Patek complication photographs supplied general register and case detail; the catalog's [official 5270J-001](https://www.patek.com/en/collection/grand-complications/5270j-001) specifies yellow gold, opaline dial, applied gold batons, day/month at 12, lateral chronograph registers, date and moon at 6, auxiliary round calendar apertures. |
| Santos | Local modern Santos images: rounded square steel case, eight bezel screws, screwed bracelet links, silver Roman dial, blued hands, sapphire crown and large-model date at 6. |
| Big Pilot | Exact local `iw329301-iwc-schaffhausen-big-pilot's-watch-43-iwc0143026.png.webp`: black dial, no date or reserve subdial, luminous numeral/triangle/railway minute track, large conical crown, riveted brown calfskin. |
| Radiomir | [Official PAM00754 description](https://www.panerai.com.mx/radiomir-black-seal-logo-45mm-caja-acero-caratula-negra/p): polished cushion case, wire lugs, black dial, small seconds at 9, luminous numerals/markers, logo and black calfskin. |
| NOMOS Metro | Local `1101_metro_d_g-2d-front-masked.jpg` and closeups: narrow wire lugs, pale dial, mint quarter-hour dots, mint/red reserve aperture, eccentric dial signature, fine black hands, red small seconds, tall date at 6. |

### Runtime integration

The module calls `Object.assign(FACES, ...)` and requires only the parent `FACES` object. It does not depend on `Q` or `commonDefs`; its own material and construction primitives are enclosed in an IIFE. All renderers return SVG inner markup for a 400 × 440 viewBox.

Moving elements use `data-hand` and `data-pivot="x y"`:

- `hour`, `minute`: all 19 faces. Honor their pivots; Lange is `(160, 211)` and Luminor is `(196, 220)`.
- `second`: 18 faces. Running seconds are in a subdial on Reverso `(200,287)`, Lange `(249,290)`, Portugieser `(200,286)`, Monaco `(139,230)`, Luminor `(116,220)`, Marine `(200,286)`, Patek `(132,221)`, Radiomir `(118,220)`, and Metro `(200,272)`.
- `chrono`: centered chronograph seconds on Portugieser, Monaco, Patek. These can remain at zero until the app's chronograph is running.
- `subminute`: elapsed 30-minute registers on Portugieser `(200,155)`, Monaco `(261,230)`, Patek `(268,221)`. Use a 30-minute revolution, not a 60-minute clock revolution.
- `datepointer`: Villeret `(200,220)` and Patek `(200,285)`. Both carry `data-offset="11.612903225806452"` (360/31), to add to the parent engine's `(dayOfMonth - 1) * 360 / 31`; the printed 31 aligns to 12 o'clock and 1 is one step clockwise.

- `moonphase`: clipped moving twin-moon discs on Villeret `(200,305)` and Patek `(200,303)`. Apply `moonAge / 29.53059 * 180`: angle 0/180 is new moon, 90 is full moon. Villeret has its characteristic moon face; Patek uses a smooth moon.
- `power`: four indicators with upward base geometry, `data-full-angle` / `data-empty-angle` / `data-reserve-hours`. Interpolate `fullAngle + (1 - fractionRemaining) * (emptyAngle - fullAngle)`. Lange `(286,243)` uses 55→125°, 72 h; Snowflake `(176,262)` uses 215→280°, 72 h; Marine `(200,155)` uses -120→120°, 60 h; NOMOS `(217,174)` rotates the reserve aperture sector 0→270°, 42 h. The NOMOS rotating sector is an illustrative visual, not an exact reconstruction of its proprietary reserve mechanism. Nominal reserve figures follow the official [Metro 1101](https://nomos-glashuette.com/en/metro/metro-date-power-reserve-1101), [SBGA211](https://www.grand-seiko.com/us-en/collections/sbga211g), Lange and Marine sources.

Text fields are `date`, `day`, `month`, `datetens`, `dateones`. `day` and `month` expect short uppercase labels, e.g. FRI and SEP. Lange expects one character per `datetens`/`dateones` slot, normally using a blank or zero for the leading digit as desired. Date windows are clipped with instance-specific IDs. The Tank has only hours/minutes and cadence `tick`; Snowflake cadence is `glide`; other entries are `sweep` per the catalog.

### Limits and verification

These are vector interpretations, with shared metal/strap rendering primitives and individually constructed cases/dials. They are not photographs, replicas for manufacture, or measured CAD drawings. Dial lettering uses browser fonts; engravings, surface reflections, and textures are approximations. Moonphase is an animated mechanical-style display driven by the application's lunar-age calculation. Power-reserve indications are a browser-session simulation driven by the application's Wind control, not actual stored mechanical energy. The Patek auxiliary apertures show a day/night approximation and the selected calendar year's position in the leap-year cycle.

All 19 SVGs were generated, parsed as XML, checked for duplicate IDs/undefined/NaN values, and rendered in a contact sheet for visual inspection. Corrections after inspection included a softer Snowflake texture, proper wide Big Pilot hour markers, rounded Nautilus case transitions, rectangular Cartier radial numerals, adjusted Tank/Reverso case proportions, extended baton-hand lume, and clipped date apertures. Final closeup QA also checked moving lunar discs, power pointers, correct 10/20/30 register labels, the Marine round date aperture, and softened brushed-metal bracelet reflections. The renderer section passes inline JavaScript syntax validation through `npm test`.

## Application validation

The final standalone page passed repository validation and a Chromium interaction check: all 62 SVGs render with unique IDs, resolved gradients and clips, finite geometry, and no runtime errors. City addition/removal, persistent settings, individual/all shuffle, collection search, detail focus, chronograph start/stop/reset and offline file access were exercised. All faces were updated at 10:10, 12:00, 03:15, 06:30 and 23:59, including single-digit, month-end and year-end dates. Phone controls meet the 44-pixel target and the layout has no horizontal overflow.

Rendered previews: [desktop](assets/astra-desktop.png), [phone](assets/astra-mobile.png).