Build or restore your own automatic watch with this 39 mm stainless steel watch case kit, engineered for popular Japanese movements such as NH35, NH36, 4R and 7S. The case is machined from 316L stainless steel and topped with a mineral glass crystal, giving your build a clean, classic look that suits both dress and everyday wear.
Whether you are a hobbyist assembling a custom piece or repairing a favorite watch, this kit pairs a solid case with a leather strap and a stainless steel butterfly double push button clasp. The 31 mm dial opening and 19 mm lug width are common sizes, so compatible dials and straps are easy to source.
Ideal for watch enthusiasts, modders and repairers who want to assemble a custom automatic watch or refresh an existing one. The case accepts a 31 mm dial and a 19 mm strap, and is built around the NH35, NH36, 4R and 7S movement family.
Water resistance is rated at 5ATM depending on how the movement and case back are mounted, so proper sealing during assembly is recommended.