Katana Diver

The Katana Diver is a bold, custom-built timepiece that fuses rugged style with refined mechanical performance. Housed in a robust aftermarket 43.8mm stainless steel modified LWW Katana Diver case, featuring a fully rotational bezel with a solid stainless steel case back. At its heart beats the reliable Seiko NH38 mechanical movement, offering durability and precision. The minimalist black “369” dial, free of any date complication, keeps the focus on clean legibility and classic aesthetics. Finished with a polished stainless steel jubilee bracelet, the Katana Diver balances modern toughness with timeless sophistication.

This is a hand-assembled custom watch build, made from a combination of OEM Seiko parts and aftermarket components.

Specifications:

• Dial: 369 Sun textured black 28.5mm dial. No date window
• Movement: Seiko NH38 mechanical movement
• Case Diameter: 43.8mm (excluding crown)
• Case Thickness: 13.65mm
• Crystal: Sapphire crystal
• Case Material: 316L stainless steel
• Crown: Screw-down
• Bezel: Ceramic insert
• Luminous: Green lume on Hour and Minute hands and dial hour markers
• Bracelet: Jubilee Satin Stainless steel with Mirror Centre Links
• Lug Width: 22mm
• Wrist Size: Adjustable, with link removal tool
• Water Resistance: Rated at 20 ATM (splashes, rain or snow, showering, swimming, diving into water, snorkelling, high-speed water sports)

👉 Note: This watch is not a Seiko factory product. It is a one-of-a-kind custom build created by Laois Watch Works.