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Does the 39.5mm adjustable PO clasp fit a Speedmaster?

  1. Owlsu

    Owlsu Apr 10, 2017

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    Hi all, I'm trying to find out if the current 39.5mm Planet Ocean (215.30.40.20.01.001) clasp (STZ004666) will actually fit straight directly onto the current Speedmaster Professional with the screw bracelet (311.30.42.30.01.005) without having to buy any extra saddle/connecting links to make it fit?

    I've seen people online put the other type of clasp (117STZ001154) that was made for the bigger Planet Ocean/Seamaster/Speedmaster MK.II onto a Speedmaster Professional but that type requires two saddle/connecting links to make it fit.

    So will the newer STZ004666 just simply fit as-is to the current bracelet?

    There's practically no information out there on this and nobody has a proper answer.
     
    Edited Apr 10, 2017
  2. Linzer Ω 1

    Linzer Apr 10, 2017

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    You may find this thread useful.
    https://omegaforums.net/threads/micro-adjusting-clasp.37817/
     
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  3. Owlsu

    Owlsu Apr 10, 2017

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    Thank you, that confirms the 117STZ001154 one can't connect without two extra attachment links being added, now I just need to find out about the STZ004666 which is much smaller and has a different shape with about half as much adjustment.

    Edit - just had a message from someone that knows loads about clasps and said that regardless of micro-adjustable clasp type and if the bracelet is using screws or pins, every single clasp needs two attaching links to be purchased so you can actually fit it on a Speedmaster.

    I just got off the phone to an AD and they looked up the 117STZ004666 bracelet in their system. They told me it won't fit a Speedmaster Professional (because it needs those attaching links I guess) but they did interestingly tell me it "officially" (as a replacement part) fits both the 39.5mm Planet Ocean and the Moonphase Speedmaster...Which I'm assuming is the recent 2016/2017 Master chronometer chronograph moonphase model which has a steel bracelet vairient and adjustable clasp so it's probably using the 117STZ004666 too but has the attaching links already fitted onto the bracelet.
     
    Edited Apr 10, 2017
  4. w.finkenstaedt

    w.finkenstaedt Apr 10, 2017

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    The 1154 clasp will fit. You need the attachment links from the 42mm PO bracelet.

    Ps- all of the clasps fit the same. Any watch that can fit the SMP (212), 300MC (233), or PO (232) clasps have direct bolt-on with the 1154 and 4666.
     
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