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gmmy775
·Recently got to check another classic Omega off my wishlist, this faded black/grey dialed Chronostop. I had been wanting a “Driver” or even an Italian Dynamic case model, but I wasn’t going to pass this up at the price. Now I am pleased I did, as a “no date” was high on my list, and this fit that bill. I don’t mind that the case shows plenty of use, especially since I see no evidence of buffing. It was hard to tell about the dial at bidding time, as the hesalite was rather wounded. Needless to say, some superfine sanding boards and polywatch revealed this near flawless face. I have already put a tiny scratch back on the crystal, just left of the “Chronostop”. I am cool with that, as I intend to wear it frequently once it returns from service. Even though technically this is smaller than almost all of my Omegas, it wears larger due to the case shape and very defined boxed crystal. Perhaps my next one will be an Italian version, and I’ll be fussier with that…and likely rarely wear it. Much thanks to DSIO for the extraordinary multi-part treatise on these rather unique Omegas.
This Chronostop contains a nice Omega caliber 865 hand wind 17 Jewel “no date” movement, which is a lesser-functioned version of the cal. 861 used in earlier Speedmasters. It has decent plating and minimal decoration, and has no indications of being adjusted by Omega.
This 21600 bph movement will be jumping to the head of the line for service, as that is what the OF sages recommend. It was tested on the Timegrapher in the dial up position and delivered +9 to 14 seconds per day; a balance wheel amplitude at full wind of 263 degrees; and a beat error of 0.6 milliseconds.
Spec sheet:
OMEGA Gene’ve Chronostop ref. 145.009 Cal. 865 Hand Wind SS
Width w/o Crown: 34.10 mm, Tonneau
Length: 38.80 mm
Depth: 11.05 mm w/crystal
Lug Width: 17.85 mm
Crystal: 31.60Dia mm, in watch. Hesalite, signed
Crown: 5.65Dia mm, signed
Pusher: 4.00Dia mm, not signed
Case Back Diameter: 31.80 mm
Case Back Thread OD: 30.55 mm
Inside case back inscription: Omega symbol and Omega Watch Company, inside triangle; Fab. Suisse; Swiss Made; Acier Inoxydable; 145.009; stylized Keyhole symbol
Engraving on outside case back: Waterproof; Tested 30m, around perimeter
Movement: cal. 865 17 jewel Hand Wind, 21600 bph, no apparent adjustments
Engraving on Movement: Seventeen 17 Jewels; Omega; Swiss; Omega symbol over 865; 26574826 on escapement bridge.
Timegrapher 1900 readings: +9 to 14 seconds a day; 263 degrees of amplitude; 0.6 milliseconds of beat error; 50 degrees lift angle.
This Chronostop contains a nice Omega caliber 865 hand wind 17 Jewel “no date” movement, which is a lesser-functioned version of the cal. 861 used in earlier Speedmasters. It has decent plating and minimal decoration, and has no indications of being adjusted by Omega.
This 21600 bph movement will be jumping to the head of the line for service, as that is what the OF sages recommend. It was tested on the Timegrapher in the dial up position and delivered +9 to 14 seconds per day; a balance wheel amplitude at full wind of 263 degrees; and a beat error of 0.6 milliseconds.
Spec sheet:
OMEGA Gene’ve Chronostop ref. 145.009 Cal. 865 Hand Wind SS
Width w/o Crown: 34.10 mm, Tonneau
Length: 38.80 mm
Depth: 11.05 mm w/crystal
Lug Width: 17.85 mm
Crystal: 31.60Dia mm, in watch. Hesalite, signed
Crown: 5.65Dia mm, signed
Pusher: 4.00Dia mm, not signed
Case Back Diameter: 31.80 mm
Case Back Thread OD: 30.55 mm
Inside case back inscription: Omega symbol and Omega Watch Company, inside triangle; Fab. Suisse; Swiss Made; Acier Inoxydable; 145.009; stylized Keyhole symbol
Engraving on outside case back: Waterproof; Tested 30m, around perimeter
Movement: cal. 865 17 jewel Hand Wind, 21600 bph, no apparent adjustments
Engraving on Movement: Seventeen 17 Jewels; Omega; Swiss; Omega symbol over 865; 26574826 on escapement bridge.
Timegrapher 1900 readings: +9 to 14 seconds a day; 263 degrees of amplitude; 0.6 milliseconds of beat error; 50 degrees lift angle.
