ORIGINAL NAVY SEAL 3000 SERIES- Function: Time/Date- Movement: Quartz- Size of case diameter: 44mm- Case material: CARBONOX- Case bezel: Uni-directional rotating- Case back: Screw on caseback- Crown: Double-Security Gasket- Water-resistance: 200m / 20atm- Crystal/Glass material: Hardened Mineral Crystal- Strap/Bracelet material: Genuine Rubber- Case Height: 12mm- Weight: 56g- Illumination: Night Vision Tubes (25 years)