22mm Elasticated French Navy and Special Forces Strap in Maroon Vietnam Pattern Watches The Dive II measures 39mm

The Dive II measures 39mm

which are readily available

Of course it's small size makes it nigh on impossible to find it

It is also available in alternative sizes designed to hold 6 or 10 watches

military specification MIL-S-46383A1 WRIST: INSTRUMENT (June 1965)

22mm Elasticated French Navy and Special Forces Strap in Maroon Vietnam Pattern Watches The Dive II measures 39mmMilitary Watch Straps: A Legacy of Functionality and Design The term military watch straps is often broadly applied to one piece straps, but a closer look reveals a fascinating variety, each with its own origins in different military branches across various countries. Historically, ground troops have relied on the NATO strap or its U. S. variant, while aircrew have preferred the Bund Strap. Divers, on the other hand, have used standard NATO straps,