Solarin - Watch Face

Experience the natural rhythm of the sun and celestial sky dome directly on your wrist. Solarin merges refined luxury horology with mathematical astronomical accuracy and a live atmospheric weather engine.

A dynamic upper sky dome traces the sun from dawn to dusk, transitions into a glowing sunset horizon, and reveals an authentic nocturnal starfield with 500+ cataloged stars and real-time lunar tracking. Beneath the horizon, a pure black OLED dial delivers crisp analog hands, customizable complications, and daily fitness metrics.

24-HOUR ASTRONOMICAL SOLAR TRAJECTORY
- Mathematically calibrated solar arc calculates the sun's exact elevation curve and azimuth based on your latitude band.
- Real-time sun marker moves seamlessly across the sky dome from dawn through solar noon zenith to dusk.
- Intelligent sun event complication automatically displays today's sunset time, then flips to tomorrow's sunrise.

SIGNATURE SUNSET HORIZON & TWILIGHT GLOW
- Solvane-inspired full-width horizon band with rich sunset gradient hues hugging the dial divide.
- Atmospheric light scattering: warm directional glow follows the sun as it touches and dips below the horizon.
- Dynamic cloud base underlighting illuminates cloud canopies with warm amber light during sunset.
- Pure OLED black lower dial panel guarantees stark legibility and zero battery drain on dark pixels.

NOCTURNAL ASTRONOMY & 500+ STAR CATALOG
- Authentic celestial dome featuring over 500 stars mapped from astronomical catalogs.
- True celestial rotation around the polar axis with automatic Northern/Southern hemisphere alignment.
- 29-phase lunar ephemeris calculating the moon's real-time hour angle, elevation, and phase.

DYNAMIC REACTIVE WEATHER ENGINE
- Seamlessly integrates with live Wear OS weather conditions.
- Multi-layer cloud systems: fair-weather cumulus, stratocumulus, overcast stratus, and storm clouds.
- Dynamic precipitation: falling animated rain streaks, winter snow flurries, and thunderstorm veils with lightning illumination.
- Glanceable upper sky temperature and weather condition indicators.

DUAL HOROLOGY: ANALOG & DIGITAL
- Toggle instantly between refined classic analog hands and bold modern digital chronograph typography.
- 6 Hand Styles: Classic, Dauphine, Pencil, Bold, Baton, and Slim.
- 6 Curated Color Palettes: Ivory, Amber, Ice, Rose, Sage, and Lilac.
- 3 Always-On Display (AOD) Levels: Simple, Detailed, and Full — each engineered with active burn-in protection.

COMPLICATIONS & HEALTH METRICS
- Daily step goal progress arc integrated around the dial.
- Battery reserve gauge and calendar event tracking.
- Up to 5 customizable complication slots for your favorite Wear OS apps.

BUILT FOR WEAR OS (WFF v4)
- 100% native Watch Face Format v4 (hasCode=false) standard.
- Zero background CPU load, zero battery-draining wake locks, and zero phone companion app required.
- Fluid native 60 fps rendering optimized for Wear OS 5 and Wear OS 6 devices.

COMPATIBILITY:
Compatible with all smartwatches running Wear OS 5 (API 34) or higher, including Google Pixel Watch series, Samsung Galaxy Watch 4 / 5 / 6 / 7 / Ultra, and modern Wear OS devices.

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