Brand: Longines Model: Legend Diver (2023)Reference Number: L3.764.4.50.0 (black, strap), L3.764.4.50.6 (black, bracelet), L3.764.4.90.2 (blue, nylon
replica horloges NATO), L3.764.4.90.6 (blue, bracelet)Diameter: 39mmThickness: 12.7mmCase Material: SteelDial Color: Blue or black Lume: Super-LumiNovaWater Resistance: 300 meters (tested to ISO 6425 standard)Strap/Bracelet: leather, nylon NATO, or steel bracelet