OMEGA, Speedmaster Mark II, chronograph

Case size: 41.5 mm
Material: steel
Movement: manual, caliber 861
Year: circa 1970
Crystal: mineral crystal
Bracelet: original bracelet, folding clasp, ref. 1162/154
Reference number: ST 145.014
Serial number: 30999796
Case number: 145.014

Later bracelet.
Please keep in mind that an overhaul might be needed, since no service history is available.