OMEGA SPEEDMASTER Reference: 145.022-68ST. Serial number: 26559853. Steel case. Steel pulsometer bezel. Black dial, featuring three sub-dials (seconds, minute totaliser, hour totaliser). Manual-winding mechanical movement (calibre 861). Stainless steel bracelet (1035) with a signed stainless steel folding clasp, end links (516). Plexiglas crystal. Circa 1968. Diameter: 42 mm. A stainless steel wristwatch with a mechanical movement, by Omega. Circa 1968. RC: Sold as is, with signs of wear and use. Functional pulsometer bezel. Movement was functioning at the time of writing this description; a routine service is recommended; no warranty.