20mm FKM (Patterned) Rubber Strap with Quick Release Feature for Fast and Easy Fitting and Removal 18mm NATO Straps but there's now a simpler

but there's now a simpler alternative

Enhanced Nighttime Visibility: Utilizes Super Luminova for improved nighttime visibility while retaining the historical encircled T on the dial

These watch straps - available in 18mm - were very widely used in the 1950s and 1960s prior to the introduction of today's nylon NATO straps

All MWC 500M diver models come with a helium escape valve

Durable Construction: The robust materials and construction make these straps extremely hard-wearing

20mm FKM (Patterned) Rubber Strap with Quick Release Feature for Fast and Easy Fitting and Removal 18mm NATO Straps but there's now a simplerFKM2 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