Case material: Stainless Steel Case size: 44 mm Black dial Glass: Sapphire Crown: screw Bazel: Rottating Day/date Hands : luminous Bracelet: Stainless steel Full set Warranty card blanc Extra links Movement: Hamilton H-21-Si automatic chronograph movement, offering a 60-hour power reserve. It features an anti-magnetic silicon hairspring. Case: Imposing 44 mm diameter and 14.6 mm thickness, constructed from brushed and polished stainless steel. Dial: Deep black layout with a day-date window at 3 o'clock, alongside a 30-minute counter (12 o'clock), 12-hour counter (6 o'clock), and running seconds (9 o'clock). Bezel: Bidirectional rotating logarithmic slide-rule bezel designed for complex pilot calculations. It converts units like feet to meters, miles to kilometers, and foreign currencies. Crystal: Scratch-resistant sapphire crystal with anti-reflective coating. Water Resistance: Rated up to 10 bar (100 meters / 328 feet) with a screw-down winding crown. Will ship insured and registered