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Requesting help with a Speedmaster 321 105012-66 CB question

  1. MGMCCO Mar 16, 2017

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    Hello all,
    I would appreciate it if someone here could help me understand the situation with a 321 that I bought as a refurbished watch from a Tourneau dealer about 10 years ago. Here are the basic facts: the movement has a serial number of 25443446 which I think indicates a 145.012 from 1967; the case back is marked with 105012-66 CB, and with what appears to be a factory marking of 145 012 SP; the case was overly polished when I bought it, there are no facets on the top of the lugs, but the sides of the lugs look much thinner than my HF cased 861. I'm confused by the inside case back markings. Is this a 145.012 reference 321 that somehow got a CB-marked case back somewhere along the way? Or is there another explanation? Thanks for any help with this, Mark 321 serial.JPG 321 case back inside.JPG 321 lugs.JPG 321 case.JPG 321 case back outside.JPG
     
  2. oddboy Zero to Grail+2998 In Six Months Mar 16, 2017

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    There are others...

    http://m.ebay.ca/itm/121907760935Purchases made through these links may earn this site a commission from the eBay Partner Network

    I think the theory was that it was during transition where old case backs were stamped with the new reference number.
     
  3. Davidt Mar 17, 2017

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    Have you got a picture of the rear of the case/watch?
     
  4. MGMCCO Mar 18, 2017

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    Thanks for the information above, I didn't realize there were dual marked CB backs. I've attached a photo of the back of the case that the 321 was in when I bought it from Tourneau. Also, since the slope sides of the case, which I assume came from a polishing, just never looked right to me, I had the watch put into a 145/345.808 case that I had purchased from that NZ supplier on eBay back when the cases were going for around $500. I wasn't a very informed Speedmaster buyer when I initially purchased the watch, I saw it in a window and got hooked and went into the store...at least I had enough sense to have them take off the case back and show me that there really was a 321 inside. At this point, the watch is due for an overhaul, and I'm not sure that I want to leave it in the display case. I've started looking for a 145.012 case, but it looks like that's a bit of a challenge. Thanks again for the help.
    321 back.JPG IMG_0510.JPG IMG_0509.JPG
     
    IMG_0713.JPG IMG_0510.JPG IMG_0509.JPG
  5. Screwbacks Mar 19, 2017

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    a 321.105012.66 doesnt necessarily mean a 321.105012.66 cb case with sharp faceted and flat-footed lugs.
     
  6. MGMCCO Mar 19, 2017

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    With the serial number on this movement,
    is it best referred to as originally being a 145.012 from 1967?
     
  7. Screwbacks Mar 19, 2017

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    the caseback might not belong to that watch. i suspect it is 145.012 from 67. i might be wrong.