All the Grands Fonds 300 dive watches in the 1964 Spirit collection, which share the same DNA, perpetuate the spirit of the first-ever Grands Fonds created back in 1964. For two decades, this sturdy, accurate timepiece met the requirements of specifications imposed by the French National Navy for equipping its clearance divers. In this collection, the timepieces, waterproof to depths of 300 m, and all tested down to 1,500 m, combine vintage stylistic details with state-of-the-art engineering design. The Magnum-type hands, the indexes and the “lollipop”-styled direct-drive are coated with beige Super-LumiNova®.

Moreover, all the models embrace ZRC’s latest technical innovations. The Easy Clean System, ECSTM, prevents sea salt from crystallizing between the unidirectional bezel and the 316L steel case. Thanks to this device, cleaning the watch with fresh water after a dive ensures salt crystals and impurities are removed.
The Crown Protection System guarantees 100% waterproofness. The bracelet or strap cannot be clasped if the crown is not totally screwed. These versatile watches also offer optimized wearer-friendliness for secure use when diving. As such, the unidirectional rotating bezel is slightly withdrawn to ensure its set marker doesn’t change unintentionally during underwater excursions.

To forever be in tune with stylistic preferences of the times, ZRC proposes a variety of dials, with or without minute tracker and date. Whatever model you choose, the Grands Fonds 300 1964 Spirit watch hosts an automatic Sellita SW-200-1 caliber in its sophisticated version, renowned for its reliability. Each watch can be coordinated with a metal bracelet, a leather or a NATO strap.

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: 300 meters proofed, tested up to 800m

MOVEMENT:
- Calibre: ETA “Elaborated” 2824-2 or SELLITA “Elaborated” SW200-1
- Setting: + 7sec/day
- Amplitude: (± 7sec/day) = from 0 to 14 sec/day max.
- Winding: Automatic winding
- Power reserve: 38 hours
- Functions: Hours – Minutes – Seconds

LEATHER:
- Manufacture: Leather strap equiped with an automatic sizing folding buckle
- Clasp: Single buckle
- No suitable for sporty and nautical activities