PRICE REDUCTION! Omega Speedmaster Professional Moon Wristwatch With Original Box.

Fabulous Original Speedmaster Caliber 861 just serviced.  17 jewels, manual.

In 1968, Omega decided to replace the cal.321 movement by a more accurate movement which was also cheaper to produce, the cal. 861 which was also produced by Lemania. This movement is still being used in the current line of Omega Speedmaster Professionals. The movement was a bit more accurate, 21600A/h instead of 18000A/h. It also uses a shuttle cam instead of a "schaltrad" for the chronograph. Changes on the outside  :  white marked Omega-symbol instead of metal applied Omega-symbol and a flat dial.

Case: 145022-78 ST, steel, screw back, Flight Qualified markings on the back, 41 mm
Dial: black, three register, luminous markers and batons
Movement: 17 jewels, manual, caliber 861
Band: steel, deployant clasp
Signed: all signed Omega, with boxes and warranty booklet

Movement  Manual winding
Case Material  Steel
Year bought  1966
Case Material  Steel
Case Diameter  41,5 mm
OMEGA HOUSING YEAR 1978
OMEGA screw (REF 145022-78 ST)
STEP - DIAL
BEAUTIFUL PATINA
OMEGA STAINLESS STEEL NO 1479/812-