Water Resistance: 100 metres / 10 ATM / 330 ft
they don’t match the durability of sapphire
free from the aggravating ticking sound common in most quartz wall clocks
originally made under the UK Ministry of Defence reference 6B/346 Mk XI
Case Width Including Crown: 45mm
20mm FKM (Smooth) Rubber Strap with Quick Release Feature for Fast and Easy Fitting and Removal chronograph Water Resistance: 100 metres /FKM1 FKM, short for Fluoroelastomer, is a high performance synthetic rubber known for its exceptional density, durability, and resistance to water, chemicals, oil, and heat. Originally developed for aerospace applications, FKM was designed to meet the stringent reliability and longevity requirements of aircraft and space missions. These qualities make FKM straps highly favored by military personnel, police officers, and professional divers, as they