The Tissot Seastar 1000 Quartz Chrono is a diver's watch that is water-resistant to 300 metres. It has a 45.5-millimetre steel case with a screw-locked crown, case back and pushers. The rotating bezel is made of aluminium. It is available with a steel bracelet equipped with a folding clasp with safety catch and diver extension system or with a rubber strap. The movement is quartz. Prices: from 494 to 595 euros.