The ZRC Grands Fonds 300 MN64 Heterium (Reference GF421613) is a distinguished edition of the classic MN64 diver’s watch, combining heritage, performance, and refined design. Its iridescent blue gradient dial and innovative features make it a standout in the world of diving watches.
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.
The MN64 Heterium exemplifies ZRC's commitment to blending traditional design with modern innovations, making it an exceptional choice for diving enthusiasts and collectors alike.
