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Caliber: CH 28-520 C/522
Type: Self-winding mechanical chronograph
Complications:
Flyback chronograph (instant reset & restart)
Central chronograph seconds hand
60-minute counter at 6 o'clock
Date display (aperture at 4:30)
Power Reserve: 45–55 hours
Frequency: 28,800 vph (4Hz)
Jewels: 40
Control System: Column-wheel + vertical clutch (smooth operation)
Specification | Details |
---|---|
Material | 18K white gold |
Diameter | 42.2mm (10–4 o’clock) |
Thickness | 11.9mm |
Water Resistance | 30m (3 bar) |
Crown | Screw-down (enhanced sealing) |
Pushers | Rectangular chronograph pushers |
Crystal | Sapphire (front & exhibition caseback) |
Color: Blue with black gradient (dynamic sunburst effect)
Texture: Embossed Aquanaut pattern (signature geometric design)
Indices: Gold applied numerals with Super-LumiNova coating
Hands: Gold-plated with luminous filling
Subdial: 60-minute counter (snailed finish)
Material: "Tropical" composite (midnight blue, ultra-durable)
Clasp: White gold Aquanaut deployant buckle (patented fold-over mechanism)