








SunRex - "321"
The 321 embodies the spirit of motorsport: fast, legible, and instinctive. Its black dial contrasted with yellow echoes the design of racing gauges, while its ultra-light aluminum case delivers a sensation of speed on the wrist. Powered by a Viluminus solar movement and designed to withstand an active lifestyle, the 321 is a modern chronograph that combines precision, comfort, and racing character.
Main features
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Viluminus solar movement, autonomy up to 5 months
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1/20 second chronograph + 60 minute counter
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Ultra-lightweight aluminum case
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Domed sapphire crystal with anti-reflective coating
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Comes with 2 straps: FKM + eco-tan leather
Technical specifications
Movement: Epson VS76A (solar), power reserve up to 5 months
Functions: 1/20 s chronograph, date, luminous hands
Case: Lightweight aluminum
Waterproof rating: 100 m
Glass: Domed sapphire “museum grade”, anti-reflective
Bracelets: FKM + eco-responsible tanned leather (20 mm)
Crown: Screwed in at 3 o'clock
Dimensions:
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Diameter: 38.6 mm
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Lug-to-lug: 43.5 mm
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Thickness: 14 mm
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