Self-winding mechanical movement. Caliber CH 28‑520 C.
Black embossed, gold applied numerals with luminescent coating.
Steel. Screw-down crown. Sapphire-crystal case back. Water resistant to 120 m. Diameter (10-4 o’clock): 42.2 mm. Height: 11.9 mm.
Composite material, black (originally fitted). Composite material, orange (additional strap). Aquanaut fold-over clasp.