39mm Dive Watch Case BB58 Mod 20BAR Waterproof Dome Sapphire Glass 39mm Black Bay Watch Case for NH34 NH35 NH36 NH70 ETA2824 PT5000 Watch Parts Color:blue A2 A rugged and industrial-style watch

A rugged and industrial-style watch case engineered for the popular Seiko VK63 meca-quartz chronograph movement

Crystal: Sapphire crystal

5mmCase Thickness: 12mmWater Resistance: 50MPower Reserve: 42 hours

Strap: 20mm wide leather strap featuring a folding clasp for comfort and secure wear

Provides a secure fit while maintaining a sleek

39mm Dive Watch Case BB58 Mod 20BAR Waterproof Dome Sapphire Glass 39mm Black Bay Watch Case for NH34 NH35 NH36 NH70 ETA2824 PT5000 Watch Parts Color:blue A2 A rugged and industrial-style watchThis 39mm dive watch case is a classic BB58 mod design, built for professional watch modding and custom builds. Made from solid 316L stainless steel with black or rose gold coating, it features a domed sapphire crystal, 20BAR (200m) water resistance, and broad movement compatibility. Ideal for NH and ETA based automatic movements, this case offers durability, vintage proportions, and a premium diver aesthetic. Custom logo service is supported.