1977 Set O Matic Diver 666 Bezel

Submitted by JimDon5822 on August 31, 2020 - 5:04pm

I picked up this 1977 diver recently.  It has a 1133.10 movement that was missing parts but is running now and I just need a bezel.   It appears this came with the Pepsi bezel with the red to 15 seconds.  I picked up a NOS bezel on Ebay.  It is part #BT/857W 1-Turning bezel Group 6.    This one is a Pepsi also but to 20 seconds.   It came with the spring and bezel insert for $60 and I had a $25 coupon so I jumped on it.  I figure if I cant use it someone else here might.   That being said anyone know the part number for this watch bezel and the watch for NOS bezel that I picked up?


1977 Diver

Geoff Baker
Posted August 31, 2020 - 10:32pm

Hi Jim - what's the case number on this one?

Posted August 31, 2020 - 11:12pm

In reply to by Geoff Baker

This is what I found on the line books that seem to be the closest match.


Line book

Posted September 1, 2020 - 6:58am

Looks like a match to me. Do you have the case reference number. We might be able to find the correct bezel ring for this beauty. 

Posted September 1, 2020 - 9:33am

In reply to by mybulova_admin

I can't find any other reference number than the N171.  The case back is marked Hong Kong on the inside along with the N-171.    

Posted September 9, 2020 - 2:41pm

Well the bezel came in and it was too large for this watch.  Back to the drawing board.  Let me know if you have a need for a bezel.  

Posted September 14, 2020 - 12:28pm

I found a case, dial and bezel for sale on ebay.   I should be good.  I will post it when I get it back together.  

Posted September 21, 2020 - 4:46pm

Well I received the case and bezel today and low and behold it does not fit.  They seller sent me the exact same case as me along with this dial.  It is the correct diameter but the bezel channel is recessed and the bezel sits atop the case.  Therefore the tension spring cannot reach down to the tension ring channel.  It is as if there is a missing gasket that or part that would sit in the channel.  Does anyone have one of these that can show me what the bezel should look like or how it attached to the watch.    The bezel looks correct in all other ways.  Thanks