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1303 · 3 June 2009, 02:36 PM

I have recently acquired an early 50's Bubbleback and realized it was giving some noise when the watch was being shake. I managed to open the back and found that the winder rotor wobbles and has a bit of play in it. Is this a sign of wear? If yes, what is it that has worn out? Or, if this is something adjustable?

Rikki · 10 July 2009, 12:43 PM

The rotor in a bubble back has a steel rotor that pivots on nickel plated brass plates, with the proper staking tools the holes in the plates can be closed to take up the side shake and stop the rattle. It doen't work in all cases just depends how long it's been doing wearing out the pivots if it has been too elongated you may be sol without replacement parts which are as scarce as hen's teeth Rik the watchmaker

3 June 2009, 02:36 PM	#1
1303 "TRF" Member Join Date: Mar 2009 Location: Hong Kong Posts: 27	Rotor Wobble - Bubbleback Movement Question I have recently acquired an early 50's Bubbleback and realized it was giving some noise when the watch was being shake. I managed to open the back and found that the winder rotor wobbles and has a bit of play in it. Is this a sign of wear? If yes, what is it that has worn out? Or, if this is something adjustable?

10 July 2009, 12:43 PM	#2
Rikki TechXpert Join Date: Jun 2009 Real Name: Rik Dietel Location: Seminole Fla Watch: 5512 s/s Sub Posts: 1,818	The rotor in a bubble back has a steel rotor that pivots on nickel plated brass plates, with the proper staking tools the holes in the plates can be closed to take up the side shake and stop the rattle. It doen't work in all cases just depends how long it's been doing wearing out the pivots if it has been too elongated you may be sol without replacement parts which are as scarce as hen's teeth Rik the watchmaker

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