ZRC Geneve HETERIUM GF421613 - 41.5mm - 1,000m

ZRC Grands Fonds – Perfect symbiosis of tradition and technical excellence

On Rubber Strap

The ZRC Grands Fonds combines classic design with the highest functional reliability and a distinctive modern character. As a contemporary interpretation of the legendary Grands Fonds 300®, this model embodies the essence of a professional diving watch. Equipped with a solid steel bracelet, this variant not only offers robustness and durability but also a high level of wearing comfort – both underwater and in everyday life.

Elegance and functionality in maritime style

The gradient dial, which gently transitions from deep navy blue to an intense black, evokes the mysterious depths of the ocean. Combined with the satin-finished stainless steel case and the integrated steel bracelet, the result is a watch that meets the highest demands both visually and technically. The unidirectional rotating ceramic bezel ensures optimal control during dives, while the innovative ECS® system (patented under N°1462496) allows for automatic rinsing and reliably removes deposits such as salt crystals.

Maximum safety through intelligent construction

The patented Crown Protection System™ offers a crucial safety feature: The bracelet can only be fully closed when the screwed crown at 6 o'clock is firmly tightened. This guarantees seamless water resistance and prevents accidental water ingress. The robust monobloc construction of the case further enhances its resistance, while the specially developed case back with programmed deformation ensures optimal pressure distribution at extreme depths – an exclusive ZRC technology.

Crystal clear view in any environment

To ensure that the time remains easily legible at all times, even in demanding situations, the ZRC Grands Fonds is equipped with a domed, 3 mm thick sapphire crystal. The anti-reflective coating provides maximum clarity and prevents disturbing reflections – whether on land or at great depths.

Outstanding water resistance for extreme conditions

This diving watch was designed for depths of up to 1000 meters and tested under extreme conditions – with a resistance of up to 1500 meters. Thanks to its precise construction and high-quality materials, it is a reliable companion for anyone who expects absolute safety in challenging environments.

Precise Swiss movement for the highest demands

Inside the ZRC Grands Fonds works the proven Sellita SW300-1 "Elaboré", a high-quality Swiss automatic movement with an accuracy of +5 seconds per day and a maximum amplitude deviation of 0 to 10 seconds per day. With an impressive power reserve of 56 hours, the watch remains reliable even when not worn for several days.

Bracelet with flexible adjustment for city and sea

The solid stainless steel bracelet made of non-magnetic 316L stainless steel was specially developed for use both in everyday life and during diving. An expandable diving extension ensures a perfect fit over a wetsuit, while the exclusive ZRC® safety folding clasp guarantees a secure fit and maximum stability.

Conclusion – A watch for explorers and perfectionists

The ZRC Grands Fonds is not just a diving watch, but a true precision instrument that masterfully combines tradition and innovation. With its unique combination of high-quality materials, innovative safety mechanisms, and a stylish, functional design, it is aimed at all those who seek adventure – both underwater and in daily life.

Specifications

• Case: Monobloc construction made of 316L stainless steel, non-magnetic
• Diameter: 41.5 mm
• Crown: Screwed at 6 o'clock with inverse thread (Crown Protection System™)
• Case back: Specially developed back with programmed deformation (exclusive to ZRC)
• Bezel: Unidirectional rotating with 60-click bezel, ceramic insert, optimized cleaning by ECS® system (Patent N°1462496)
• Crystal: 3 mm thick, domed sapphire crystal, anti-reflective
• Dial: Gradient from navy blue to black, with luminous indices
• Water resistance: Guaranteed to 1000 m, tested to 1500 m
• Movement: Sellita SW300-1 "Elaboré", Swiss automatic movement
• Accuracy: +5 seconds per day
• Amplitude: Max. deviation 0 to +10 seconds per day
• Winding: Automatic winding
• Power reserve: 56 hours
• Functions: Hours, minutes, seconds
• Bracelet: 316L stainless steel bracelet, non-magnetic, with expandable diving extension
• Clasp: Exclusive ZRC® safety folding clasp