. . . 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.
. . . for the memory." Been wearing vintage Ω tanks for the last three days. Ref 3697, ca '45 . . . . . . and ref 3635, ca '43. Both fitted with shaped movements, R17.8 . . . . . . and T17. Good performers after servicing and regulation by my watchmaker. ...
. . . but not the T17 tank. Sure enough, both were posted in 2012. Can't explain why I remember one but not the other. In any case (pun intended!), the gold tank is personally compelling. Few collectors are drawn to them which in a perverse way works in o...
. . . 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 par...