Omega

Hello Fellow Purist. I'm no expert on Omegas, so needed some advice. I have an opportunity for a Constellation PIE PAN. Could anyone shed some light on the movement Ca.501? Is this a inhouse movement by Omega?Heard that the PIE PAN is a collaboration by G...  

Hi Mike The 501 is a in house movement from Omega. The 501 was made in 20j and 19j versions. Omega made one run of 19j Chrononmetre certified movements for Connie and a few Seamasters. For later runs Omega used the 505 24j Chronometre certified. I think G...  

Thanks for the info Bill. Is there any reason why Omega decided to add 1 more jewel? Is it because the 19 jewel version has some reliability issue? The photos comes with the local dealer's watermark. Not sure if it is ok to post it. Mike This message has ... 

... the automatic winding system that needed strengthening. Later caliber 505 movements had 24 jewels, rather than 19 or 20. I think all of the early Certified cal. 501's were 19 jewels. One needs to be careful of movements that were exchanged with non-ce...  

Actually 2 pairs of 501s, size 33x30...  

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. . . cordially, Art PS - I can't remember the last time I fit into 33" waist pants . . .