F300Hz hummers

Tiger8888

I love hummers and think the tuning fork genre is incredibly interesting....from the technical advance at the time to the sweep of that second hand.
To that end, I have aquired an Omega f300 and an Accutron RR 218 and delighted with both.
I am sorely tempted to aquire another Omega f300 which has been serviced and looks great. However, this one is pricey, perhaps reflecting the service, new battery and crystal.
Is there anything I should be checking/concerned about...oiling, copper plates, friction wheel lubrucation or anything else?
Any knowlesable member's thoughts would be appreciated.
Thanks.

nitediver

I am very fond of tuning fork watches. While they are electric, the technology is differnt from Quartz and has a kind of school / analogue charm. I have a couple of them, a few also sold. I particularly like the Eternasonic.

If you buy from a good seller, who offers a warranty, you should be fine. Just check the same as on mechnical watch, like all functions are operating correct, timekeeping, and of course the originality and condition of dial, hands, case, crown, caseback and movement.

Best,

Stefan