OMEGA, Speedmaster, chronograph.

Case size: 42 mm
Material: steel
Movement: manual, caliber 321
Year: circa 1966
Crystal: plastic crystal
Bracelet: original bracelet, folding clasp, ref. 1171/633
Reference number: ST 105.012
Serial number: 24001218
Case number: 105.012-65 (HF)

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

More information

First Speedmaster to land on the moon was the ST105.012. Both Neil Armstrong’s and Buzz Aldrin’s Speedmasters were ST105.012 models. The First "Professional" Speedmaster.

Neil Armstrong's 105.012-65 had serial number 24002981 and this 105.012 - 24001218.

For condition report contact specialist