Style: 36/39MM case + ball bearing strap

Back cover: sealed back/clear back cover

Case Size:

36mm: diameter 36MM*thickness 12.5MM 

39mm: diameter 39MM * thickness 14MM (not including the handle measurement)

Suitable for assembly dial diameter: 29MM-28.5MM

Mirror: synthetic sapphire mirror

Strap size: 20MM

Fitted movement: Japanese NH35/NH36/4R movement

Water resistance: 3ATM