BEZEL ECS™ Patent pending (Easy Clean System) The ECS™ is a technical solution to an issue encountered by the mine clearance divers of the Marine Nationale during their many dives: salt crystallizing in the gaps between the bezel and case, thus impeding its rotation. For the 2015 re-issue of the Grands Fonds 300, ZRC has developed and patented a functional solution – the ECS™ was born. A unique system for cleaning the inside of the bezel by circulating fresh water that dilutes and evacuates the sea salt. The ECS™ is the ultimate tribute to the original Grands Fonds and is perfectly in tune with the brand’s identity.

CROWN Crown Protection System™ 100% safety is guaranteed thanks to this exclusive strap system using retractable lugs. It is now impossible to place the watch in water without screwing the crown back into its original position. If the crown is not screwed down, the strap cannot be correctly repositioned. This effective method prevents oversights that can lead to technical difficulties.

GLASS Curved sapphire: 4 mm The use of a Vintage 4mm glass box gives credits to the lately 1964 Spirit Grands Fonds. Thanks to its authentic design it clearly brings you back in the 70’s.

MOVEMENT ETA 2824-2 Elaborated The ETA movement of the 2015 ZRC Grands Fonds is composed of 25-ruby wheels, on which Incabloc shock protection was used. Extremely precise, the balance performs 28,800 half-oscillations per hour. With a mechanism diameter of 25.6 mm, it offers a power reserve of 38 hours.

CASE Manufacture Monobloc case Screwed case back & crown Diameter 40,5 mm Material Nonmagnetic 316L Steel Full DLC ​ISO764 Standard: 4800 A/m Bezel ECSTM system (Patent pending N°1462496) Unidirectional 60 divisions rotating bezel Crown Located at 6H (Crown Protection SystemTM). Inverted screwed thread with dual sealing Glass Sapphire 4mm padded Vintage Glassbox Water resistance Up to 300 meters

MOVEMENT Calibre 2824-2 elaborated - ETA Manufacture Setting +7sec/day Amplitude (± 7sec/day) = from 0 to 14 sec/day max. Winding Automatic winding Power reserve 38 hours

LEATHER STRAP​ Manufacture Leather strap equiped with an automatic sizing folding buckle Clasp Single buckle