GF HETERIUM

With its navy blue/black gradient dial, satin-finished steel case and metal bracelet, this version represents the quintessence of the Grands Fonds 300® diver’s watch. Its Crown Protection System™ helps to guarantee its water-resistance. Its bracelet can only be closed if the crown at 6 o’clock is perfectly screwed down. Its ECS™ system ensures optimal rinsing after a dive and eliminates impurities and salt crystals lodged between the unidirectional rotating bezel featuring a ceramic insert and the case. Its hands are orchestrated by a reliable Swiss Made self-winding calibre. ZRC HETERIUM Material: Non-magnetic 316L stainless steel, compliant with ISO764 standards (4800 A/m). Diameter: 41.5 mm. Bezel: Unidirectional rotating bezel with a 60-minute scale and ceramic insert, featuring the ECS® (Easy Clean System) for effortless maintenance after saltwater exposure. Crown: Positioned at 6 o’clock, protected by the proprietary Crown Protection System™ with an inverted screw thread and dual-seal architecture to ensure watertight integrity. Glass: 3 mm domed sapphire crystal with anti-reflective treatment. Water Resistance: Rated for 1,000 meters, pressure-tested to 1,500 meters. Caliber: Swiss-made Sellita SW300-1 automatic movement. Power Reserve: Approximately 56 hours. Functions: Hours, minutes, seconds, and date. Dial: Iridescent blue gradient sunray dial, fading from navy blue to black, with applied hour markers and Super-LumiNova for enhanced visibility. Hands: Ultra-readable "Magnum" hands with Super-LumiNova for optimal legibility in all conditions. Strap: Black FKM rubber strap, inspired by the metal bracelet design, offering comfort and durability. Buckle: Stainless steel pin buckle.