With the new Grands Fonds 300 Re-Edition collection, Zuccolo Rochet France (ZRC) pays tribute to its legendary diving watch of the 1960s.
Available for purchase from 2015, two models of the watch will be on offer. First is the Marine Nationale re-edition, which is 100% faithful to the model produced in the 1960s for the mine clearance divers of the French Navy.
Second one is a more sport chic version, tying in with the current design trends and conventions, which has the same case, with its famous crown at 6 o’clock and bezel with luminous inserts.

Both versions are Swiss made and offers 300m water-resistance. The high diving legibility is provided by its Super-LumiNova hour-markers and Magnum hands.
With the unidirectional notched bezel, reverse direction winding mechanism and automatically adjustable “diver” bracelet in steel, the new Grands Fonds 300 Marine Nationale re-edition proudly asserts its original identity.
The Sport Chic variant is a contemporary version of Grands Fonds 300. It is available with a steel bracelet or leather strap featuring red stitching.
Moving from a case diameter of 36 to 40.5 mm, which is more in line with the current trends, the new models have been given a domed anti-reflective sapphire crystal. The addition of chamfers to the case/strap ensemble makes it very pleasant to wear.

With its sharp lines and sleek aesthetics, the new Grands Fonds 300 pays homage to its heritage and represents a perfect fusion of tradition and innovation.
Inside each timepiece beats the Swiss made ETA 2824-2 automatic movement, which offers a 38-hour power reserve.
ZRC Grands Fonds 300 Re-Edition Special Features
ECS ™ – Easy Cleaning 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™. It is 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.
CPS ™ – 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.
Diver Strap
The new Grands Fonds 300 is equipped with an automatic adjustable strap, which allows it to be worn over a diving suit. This unique embedded spring system automatically adapts to the diameter of the wearer’s wrist for unparalleled comfort. No adjustments are required, as two links on either side of the case extend to accommodate the new diameter.
Technical details
Model: Zuccolo Rochet France (ZRC) Grands Fonds 300 Re-Edition
Versions
- Reference W510013: Marine Nationale Re-issue version with steel bracelet
- Reference W511013: Sport Chic version with steel bracelet
- Reference W511015: Sport Chic version with leather strap
Movement
Automatic ETA 2824-2 movement, 28, 000 v/h, 38-hour power reserve
Functions
Sports Chic Version: Date, Hours, Minutes and Seconds
Marine Nationale Re-issue version: Hours, Minutes and Seconds
Case
Non-magnetic 316L steel
Glass: Sapphire
Water resistance 300 m/30 atm
Bracelet
Non-magnetic 316L steel or Full-grain leather
Weight
± 140g on leather strap ± 210g on metal band
Special features
CPS™ System & ECS™ System