watchdives 40mm EXD Titanium Diver Watch Japan VH31 Sweep Second Quartz Watches Sapphire Crystal Wristwatch Analog Luminous Waterproof Watch for Men

Watch SpecificationBrand: watchdivesModel: watchdives EXD-40（Exchangeable X Design）Movement: Japan VH31 Sweep Second MovementCase material : Grade 2 TitaniumGlass: Flat Sapphire Crystal, High Clear AR CoatingBezel: 60-click Bidirectional Ceramic insert with Full BGW9 Super LumeDial Color: black/BlueLuminous: Super Luminous BGW-9 Blue Light, Dial, Hands and MarkersCrown: Screw-down CrownCase Back: Screw-down Case Back, Brushed ProcessStrap: Titanium Buckle. Width 20mm StrapWater Resistant: 20 bar = 200 metersWatch DimensionBezel 40.18mm in diameterLug to Lug 47.95mmThickness: 10.58mm including glass Notes:EXD: Exchangeable Lugs Design (It can fit different styles straps)Heavy Duty 316L Spring Bar Pins Won't Rust, Bend or Break

• Exchangeable X Design: Take control of your style with our professional marine quartz watch featuring the revolutionary EXD (Exchangeable Lug Design) system – a reinforced 2.0 mm quick-change spring-pin mechanism with unmatched tensile strength of 400-500N (40-50kg), allowing effortless strap changes. Inspired by professional diving watches, but engineered for 21st-century versatility.
• VH31 Sweep Second Quartz Movement: The VH31 movement delivers 4 pulses per second (ips), compared to only 1 pulse for standard quartz (60% smoother than Miyota 1L45). Furthermore, accuracy remains within ±15 seconds per month (far better than mechanical watches). More durable than delicate mechanical movements.
• Sapphire Crystal Watch: Equipped with a flat sapphire crystal and a high-clarity AR coating for superior scratch protection and clarity. The anti-reflective coating improves readability in all lighting conditions, making it both functional and stylish.
• BGW-9 Blue Super Luminous: The EXD men's watch features BGW-9 super luminous material on the dial, hands, and hour markers. The long-lasting blue glow ensures clear time readings in the dark—perfect for nighttime use, diving, or low-light environments.
• 200-meter (20 ATM) water resistant: Our marine quartz watch is built to military standards for professional diving, water sports, and extreme conditions. Unlike ordinary "waterproof" watches, this model undergoes rigorous pressure testing to ensure flawless performance at depth—a true companion for divers.