The Omega Seamaster line of watches has a long and illustrious history. Beginning in 1948 with the dress/sport model CK2518, to the iconic professional CK2913 diver, through multiple other iterations of dress/sport and professional dive models up to the innumerable current offerings. I won’t even attempt a complete history, as that’s the stuff that coffee table books are made of. However, there is one scarcer model in particular that I am quite fond of, and it is that one that we’ll discuss today: The 1970 Omega Seamaster Chronometer Officially Certified reference 166.010.
Over the decades, Omega made several different dress/sport model variations that included the “Chronometer” designation with accompanying chronometer rated movement. Most of the 1950’s through 1970’s chronometers made by Omega were in the top end dress watch Constellation line, but they did deign to make some of their Seamasters with these higher end movements. The model discussed today is housed in the reference 166.010 stainless steel case. This case has a more classic “oyster” style to it, rather than the more commonly (and popular) Seamaster cases with the well known “beefy lugs”. The case measures a perfect 36mm wide with 18mm lugs. By this time, Omega had switched from the earlier snap-on casebacks to a more stout screw in back, but still kept the classic seamonster logo embossed on the back.
The case finish is simple, with a wide polished bezel, and polished top and back, while the sides of the case have a nice vertical brushed finish. The crown is a simple knurled crown with the Omega logo, a departure from the classic clover leaf style crowns of the earlier Seamasters. The crystal is a nicely domed acrylic type, without the irksome (IMHO) cyclops magnifier for the date. It does have the nice touch of being signed in the middle of the underside with a tiny raised Omega logo. I just love that little Omega symbol.