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Omega

Both movements were technical wonders . . .

 

. . . in their day.  The T17 had an unusually long power reserve of sixty hours from a single mainspring, while the later R17.8 was one of the first production movements with a resonant frequency of 3 Hz.  


They're both solid performers.  Amazingly, spare parts are still available on the secondary market.  

Best,

Art

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