Seastar 1000 | 43.0 mm | AutomaticThe Tissot Seastar 1000 Automatic T120. 407. 37. 041. 00 is a T Sport Seastar watch. This model series is designed especially for water sports and diving watch enthusiasts. The Tissot T1204073704100 model is powered by the Powermatic 80. 111 automatic movement, which boasts a power reserve of up to 80 hours, which is twice as high as is common with automatic movements in this price range. It is fitted with 23 jewels and its 21,600 vibrations per hour