Its face is marked with five-minute red
and performance justify its use in higher-end watches
they don’t match the durability of sapphire
originally made under the UK Ministry of Defence reference 6B/346 Mk XI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 Its face is marked withFKM1 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