Vintage SEIKO Bullhead Chronograph 6138-0040 Automatic Mens Wrist Watch - Etsy UK
Seiko 'Bullhead' Chronograph automatic stainless steel gentleman's bracelet watch, ref. 6138-0040 circa 1970s, serial no. 776724, circular black dial with baton markers, Arabic/English day and date apertures at the six position, blue
Vintage Seiko 6138-0049 Bullhead Chronograph Steel Japan Automatic Men's Watch