ZRC 1904 Grands Fonds Heterium 41.5mm GF4216121218 - GF421618

The Grands Fonds 300® combines comfort and traditional aesthetics with uncompromising technical reliability. A contemporary face of the original Grands Fonds 300®, this version with a rubber strap has all the characteristics of a diver's watch.

With its gradient navy blue/black dial, satin-brushed steel case, and FKM rubber strap, this version represents the quintessential Grands Fonds 300^® diving watch.
The Crown Protection System™ helps ensure water resistance. The bracelet can only be closed if the crown at 6 o'clock is perfectly screwed down.
The ECS™ system ensures optimal rinsing after diving and eliminates impurities and salt crystals deposited between the unidirectional rotating bezel with a ceramic insert and the case.
The hands are orchestrated by a reliable Swiss Made self-winding caliber.

GF4216121218

Case
One-piece case, screw-down case back and crown.
Programmed deformation case back, ZRC exclusive.

Diameter
41.5 mm

Material
316L anti-magnetic stainless steel
ISO764 standard: 4,800 A/m

Bezel
ECS^® system
(patent n°1462496)
Unidirectional rotating bezel with 60 divisions.
Ceramic insert

Crown
Screw-down at 6 o'clock with inverted pitch
(Crown Protection System™)

Glass
Domed 3 mm sapphire with anti-reflective treatment

Water resistance
Guaranteed to 1000 m, tested to 1500 m.

Caliber
SELLITA “Elaboré” SW300-1

Regulation
+ 5 sec./day

Accuracy
(± 5 sec./day) = max. 0 to 10 sec./day

Winding
Automatic winding

Power reserve
56 hours

Functions
Hours – Minutes – Seconds

Strap
Rubber strap compatible with pin buckle. Inspired by the design of the metal bracelet, it is extremely comfortable and available in a wide range of colors.

Material
Rubber (FKM)

Buckle
Steel pin buckle

YOU CAN EXTEND THE WARRANTY FROM 3 TO 5 YEARS BY UPLOADING PROOF OF PURCHASE (I.E. THE FIRST PAGE OF THE WARRANTY, FILLING IN YOUR PERSONAL DATA) FROM JANUARY 1, 2024.

Link: ZRC Warranty Extension Form