Black 1950s Pattern 20mm Leather Military Watch Strap with Chrome Buckles chronographs 600 vibrations per hour with

600 vibrations per hour with a 41-hour power reserve

The Depthmaster is built accordingly: high water resistance

Dimensions: Width 82 mm (3

Case Diameter: 40mm (Excluding the crown)

Black 1950s Pattern 20mm Leather Military Watch Strap with Chrome Buckles chronographs 600 vibrations per hour withSKU Code: MWME100 20 These watch straps available in both black and brown and in size 18mm and 20mm were very widely used in the 1950s and 1960s prior to the introduction of today's nylon NATO straps. They look very historically, correct on older military watches as well as on some contemporary models such as the MKIII and G10's as well as remakes of historic models like the GG W 113, W10 and A 11 and many other older watches which don't look correct