Description
Product Overview
Upgrade your dive watch with the premium 20 bar at 3.8 mm SKX 42.5mm Watch Case Sapphire. Designed for mod enthusiasts, this high‑quality case features a crystal‑clear sapphire window, a precision‑cut chapter ring, and a spacious 28.5 mm dial opening—perfect for fitting Seiko NH35, NH36, NH38, or NH34 automatic movements. Whether you’re rebuilding a classic SKX007 or customizing a new project, this case delivers durability, style, and water‑resistance in one sleek package.
Key Highlights
- Robust 20 bar (200 m) water resistance for serious diving and everyday wear
- Ultra‑hard sapphire crystal (3.8 mm) for scratch‑free clarity
- 42.5 mm diameter case – ideal fit for standard SKX‑style watches
- Integrated chapter ring adds a professional, graduated look
- Generous 28.5 mm dial opening accommodates larger automatic movements
- Compatible with Seiko NH35, NH36, NH38, NH34 automatic calibers
- Precision CNC‑machined stainless‑steel construction for lasting strength
Technical Specifications
- Case Diameter: 42.5 mm
- Crystal Thickness: 3.8 mm sapphire
- Water Resistance: 20 bar / 200 m (660 ft)
- Dial Opening: 28.5 mm
- Movement Compatibility: Seiko NH35, NH36, NH38, NH34 (automatic)
- Material: 316L stainless steel, polished finish
- Included: Sapphire crystal, chapter ring, case back (no strap)
Why Choose This Upgrade?
Choosing a sapphire‑glass case not only elevates the visual appeal of your watch but also protects it from everyday scratches and impacts. The 20 bar rating ensures your timepiece can handle deep‑sea adventures, while the precise chapter ring adds a refined, professional aesthetic that stands out on the wrist. Compatible with the most popular Seiko automatic movements, this case offers a hassle‑free installation for both seasoned modders and newcomers alike.
Perfect For
- DIY watch modders looking to upgrade an SKX007 or similar dive watch
- Collectors seeking a high‑grade sapphire case for Seiko automatic movements
- Anyone who wants a durable, water‑resistant watch that looks as good as it performs
Transform your watch into a masterpiece of durability and style—order the 20 bar 3.8 mm Sapphire SKX Case today and experience the perfect blend of form and function.






Reviews
There are no reviews yet.