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Build your ultimate pilot watch with this versatile 40mm stainless steel case, engineered for Seiko NH movements. The brushed finish and screw-in crown deliver rugged durability, while the 10ATM water resistance ensures reliable performance. Compatible with NH34 GMT, NH35, NH36, and NH38 automatic movements, this complete case set includes everything needed for your custom watch project. Choose from multiple finishes.
Material: 316L Stainless Steel
Finishes: Black / Silvery / Rose Pink / Silver Ash
Case Diameter: 40mm
Case Thickness: 12.30mm
Lug Width: 20mm
Dial Compatibility: 33.5mm - 34.30mm
Movement Compatibility: NH34 (GMT) / NH35 / NH36 / NH38 / 4R36
Crystal: Mineral Glass
Crown Type: Screw-in
Case Back: Solid Stainless Steel
Water Resistance: 100 Meters / 10ATM
Includes: Case, case back, crown, movement spacer, rubber gasket, 2 spring bars










Ships within 48 hours · Estimated delivery Jun 19 - Jun 24
US$40
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