seiko 7s26a

The Seiko 7S26 movement is an automatic movement used in many popular Seiko dive watches, such as the Seiko SKX, Monster, and entry-level Seiko 5 watches. seiko 5 automatic 7s26 The 7S26 has 21 jewels, a power reserve of ~41 hours, and a reported accuracy of -20 to +40 seconds per day. seiko 5 sports srpe53k1