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timelord · 4 February 2012, 12:08 AM

and what are the respective sizes of each?

Would the matching genuine rolex crown made to screw down onto this case tube also screw properly onto some Seiko or Omega divers of the same size crown tube?

I remember from technical studies on machining that different threads made by different companies have their own matching crowns but wasn't sure if this is universal.

Has anyone ever experimented with matching crowns with different case tubes?

Rikki · 5 February 2012, 12:37 AM

those 2 have the same crown but aren't interchangeable with other brands. Rikki

timelord · 7 February 2012, 10:02 AM

Quote:

Originally Posted by Rikki

those 2 have the same crown but aren't interchangeable with other brands. Rikki

Your responses are are always helpful!!!!!

4 February 2012, 12:08 AM	#1
timelord "TRF" Member Join Date: Mar 2007 Location: Margate Watch: your back Posts: 324	does a 1803 and a 18038 take the same size case tubes? and what are the respective sizes of each? Would the matching genuine rolex crown made to screw down onto this case tube also screw properly onto some Seiko or Omega divers of the same size crown tube? I remember from technical studies on machining that different threads made by different companies have their own matching crowns but wasn't sure if this is universal. Has anyone ever experimented with matching crowns with different case tubes?

5 February 2012, 12:37 AM	#2
Rikki TechXpert Join Date: Jun 2009 Real Name: Rik Dietel Location: Seminole Fla Watch: 5512 s/s Sub Posts: 1,818	those 2 have the same crown but aren't interchangeable with other brands. Rikki __________________ Century 21 Certified watchmaker Omega Service Provider Trained Omega OWME Certified. Rolex Parts Account Holder.

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