40MM VH31 Quartz Pilot Sterile Sweep Second No Calendar Sapphire 5ATM

The 40mm VH31 Quartz Pilot Watch is a clean, sterile timepiece built for classic aviation style. Powered by the reliable Seiko VH31 sweeping-second quartz movement (mechanical-style sweep), it delivers smooth, accurate timekeeping with no calendar for a balanced, symmetrical dial. The 316L stainless steel case features a Swiss 3-piece construction with a polished bezel and brushed case/back, paired with a double-domed "bubble" crystal (mineral or synthetic sapphire) with inner AR coating for stunning clarity. The dial and hands are equipped with Japan green luminous for excellent low-light visibility. With 50m water resistance, a push-pull crown, and your choice of solid or glass caseback, this watch is an ideal foundation for custom builds, modding, or everyday wear.

Full Spec List:

• Product: 40mm VH31 Quartz Pilot Watch

• Movement: Seiko VH31 sweeping-second quartz (mechanical-style sweep)

• Dial: Sterile (no logo), no calendar

• Case Material: 316L stainless steel

• Case Construction: Swiss 3-piece (polished bezel, brushed case, brushed back)

• Case Diameter: 40mm

• Case Thickness: 10mm

• Lug Width: 20mm

• Crystal Shape: Double-domed (bubble) – not flat

• Crystal Material: High-transparency mineral (hardness 6.5) or synthetic sapphire (hardness 9)

• Crystal Coating: Outer sapphire coating + inner iridescent blue film (mineral) / inner iridescent blue film (sapphire)

• Water Resistance: 5ATM (50 meters) – suitable for daily handwashing

• Dial Luminous: Japan green luminous

• Hands Luminous: Japan green luminous

• Crown: Push-pull

• Caseback Options: Screw-in solid stainless steel / Glass transparent back

• Strap Material: Imported top-grain cowhide leather

• Clasp: Solid stainless steel buckle, brushed finish, 45-degree chamfered mirror polish, thickened hardware

• Style: Pilot / aviator / sterile

• Application: Custom builds, modding, everyday wear