With its black dial, satin-finished steel case, and metallic wristband, this model embodies the quintessence of the ZRC Grands Fonds 300® diver’s watch. The Crown Protection System™ provides a secure watertight seal. Its wristband can only be fastened if the crown at 6 o’clock is fully screwed down. Its ECS® system ensures optimal rinsing after a dive, enabling the removal of impurities and salt crystals lodged between the unidirectional rotating bezel fitted with a ceramic insert and the case. Its hands and date are driven by a reliable Swiss Made self-winding caliber.

CASE
Manufacture
Monobloc case: Screwed case back & crown

Diameter: 41,5 mm

Material: Nonmagnetic 316L Steel, ​ISO764 Standard: 4800 A/m

Bezel
ECS® system
(Patent N°1462496)
Unidirectional 60 divisions rotating bezel.
Ceramic insert

Crown
Located at 6H (Crown Protection System™). Inverted screwed thread with dual sealing

Glass
Sapphire 3 mm padded anti-reflection

Water resistance
1000 meters proofed, tested up to 1500m

MOVEMENT
Calibre
SELLITA “Elaborated” SW300-1

Setting
+ 5sec/day

Amplitude
(± 5sec/day) = from 0 to +10 sec/day max.

Winding
Automatic winding

Power reserve
56 hours

Functions
Hours – Minutes – Seconds