The Tissot Sea-Touch T026.420.17.281.00 is a multifunctional diving watch featuring a 44.4 mm stainless steel case and a black rubber strap. It offers both analog and digital displays on a black dial, protected by a scratch-resistant sapphire crystal. Powered by the ETA E48.301 quartz movement, the watch includes functions such as a chronograph, alarm, compass, altimeter, thermometer, and perpetual calendar. It is water-resistant up to 100 meters and has a unidirectional rotating bezel. The reference number for this model is T026.420.17.281.00.