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Letter O in horology

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O is for Orient

Orient Mako II FAA02002D9 (Cal: F6922)

Orient Ray II FAA02005D9 (Cal: F6922)

Orient Kamasu RA-AA0004E19B (Cal: F6922)

Orient Nano RA-AA0008B19B (Cal: F6922)


Orient Power Reserve FFDAH004Y (Cal: 46N40)

Orient Symphony FER2700CW (Cal: 48743)

Orient Star Classic Power Reserve SAF02001S0 (Cal: 40N52)

Orient Star RE-AV0005L00B (Cal: F6F44)



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“O” is for Erwin Rudolf’s Oberon Watch Co about which not much is documented. Founded in 1951, they made one in-house movement but today’s effort runs on a similarly uncommon 17j Brac 903.  Also distinguished, if that’s the correct term, by their "stylish" trademark.


Oberon after v.2.jpg

Oberon Brac 903 after v.2.jpg

Oberon trademark v.2.jpg

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ORIS Artelier, cal.623 (ETA 2859-2) 27 Jewels




ORIS  Big Crown Telemeter Chronograph, cal.674 (modified Valjoux cal. 7750) 25 Jewels. 



OMEGA ELECTRONIC f300Hz cal.1250, Seamaster CHRONOMETER, circa 1972 



OMEGA Railmaster,CO-AXIAL CHRONOMETER, cal.2403 27 Jewels.



OMEGA Speedmaster PROFESSIONAL 3570.50.00, cal.1861 18 Jewels.




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