9,7 / 10
This Speedmaster Mk IV is in mint condition.
It is fitted with a rare decimal bezel, and an original steel bracelet reference 1162/172.
About the model
As early as 1968, eager to anticipate the specific needs of NASA, Omega started to work on improvements to the Moonwatch.
At the same time, new technologies and new functionalities were appearing and becoming more popular: automatic winding on chronographs, day and date indication, then quartz and other innovations. Always at the forefront of research, Omega gradually introduced these novelties in its various ranges, and notably on the Speedmaster.
The first evolution was produced in 1969, with the Speedmaster Professional Mark II, assuming that the Moonwatch is the Mark I, although never called like this. The Mark II conserved the same caliber 861, but the case, made by Piquerez, had a new shape, with a better integration of the bracelet and a flat mineral glass covering the bezel.
Then came the first Speedmaster fitted with a self-winding movement (caliber 1040), or more generally the brand’s first selfwinding chronograph: the Speedmaster Mk III (ref. ST 176.002), with a pilot’s line steel caseband, recalling the contemporary Flightmaster models.
An evolution of this selfwinding movement was the caliber 1041, introduced in 1973 on the famous Speedmaster 125, which was the first chronometer-certified wrist chronograph.
The Speedmaster Mk IV is actually the direct successor of the Speedmaster Mk III. Its caseband is similar to the Mk II (tonneau shape). The dial layout is the same as on the Mk III: the 3 o’clock minutes counter for the chronograph has been replaced by a central counter with a particular hand having a point in the shape of an airplane.