The ultimate diving watch, the Tissot Seastar 1000 has a high water resistance of up to a pressure of 300m, and features a screw-down crown and caseback, a unidirectional bezel with aluminium ring and highly luminescent dial detail for excellent readability in the dark. Ref: T1204171104101 Product Information Brand: Tissot Movement: Swiss Quartz Case Material: Stainless Steel Case Size: 45.5mm Type of Strap: Stainless Steel Glass Material: Sapphire Crystal Dial: Blue Water Resistant: 300m Gender: Mens