Movement: High-performance automatic 24-jewel NH35A self-winding movement with a 41-hour reserve
Glass: Plexiglass / Acrylic
While the original 1960s models were rated for 200m (660ft) water resistance
EXTERIOR (LxWxD):190 x 170 x 60mm (7
22mm FKM (Smooth) Rubber Strap with Quick Release Feature for Fast and Easy Fitting and Removal Divers Watches Automatic Movement: High-performance automatic 24-jewel NH35AFKM1 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