Seiko 5 Sports Speed-Timer UFO chronograph stainless steel gentleman's bracelet watch, ref. 6138-0011, serial no. 163599, later bracelet, 44mm (in need of repair)
Solid Link BRACELET for SEIKO 6138-0011 0010 17 UFO Yachtsman Chronogr – A parts
For J.S. -- Seiko 6138-0011 UFO "Yachtman" Service - YouTube
1971 Seiko 6119-6400 Automatic 5 Sports 70m Sport Diver (UFO)
1969 Seiko 6106-6040 Automatic 70m Sport Diver “UFO” (Proof)
Help w/ Seiko UFO 6138 Parts | WatchUSeek Watch Forums