42mm Speedmaster with automatic movement

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  1. #1
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    42mm Speedmaster with automatic movement

    I have nice collection of Seamasters and am loving them. I'm also looking at Speedmaster but just don't like manual wind. New models are available with auto movements but are 44.5mm. But it's kind of not the original Speedmaster dimension, hence I was looking for a 42mm Speedmaster with automatic movement. Then today I came across Bullhead and while researching it's Caliber 3113 I found out that Speedmaster Broad Arrow 321.10.44.50.02.001 has the same movement. White dial aside it's 44.5mm!

    I then searched for other possible Broad Arrows and came across 3551.50.00 It uses different caliber though, Caliber 3300 but it is automatic and watch is 42mm!

    Ia wander if community can suggest any other versions of 42mm automatic Seamasters? Also few words about calibers 3300 and 3113? How good are those? Both Broad Arrow versions are available used only.

    Thanks.

  2. #2
    Member gt0279a's Avatar
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    Re: 42mm Speedmaster with automatic movement

    It's Caliber 3303 actually in the watch image you posted. That and the 3301 were used on several 42mm Speedy models, using the same case as the Speedy pro, but with a Sapphire crystal.

    Those broad arrow models and the Schumacher models come to mind.

    Early versions of the 33xx caliber had issues, but most were fixed.


    Omega Speedmaster Professional 3570.50 | Jaeger-LeCoultre Deep Sea Chronograph 2068570
    Zenith El Primero 03.2040.400/69 | Rolex Submariner 16610LV | Rolex Sea Dweller 116600

    Departed: 16610 Submariner | 16600 Sea Dweller | 2254.50 Seamaster 300 | 3560.50 Speedmaster Professional
    2264.50 Seamaster 300 | 166.0324 Seamaster 300 | MKII LRRP Milsub | 2200.50 Seamaster Planet Ocean
    145.022 69ST Speedmaster Professional | 3290.50 Speedmaster X-33 | 2594.52 Seamaster Chronograph
    CAR2110 Carrera 1887 | 2201.50 Seamaster Planet Ocean | 79180 Tudor Big Block


  3. #3
    Member gmads's Avatar
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    Re: 42mm Speedmaster with automatic movement

    The Speedmaster ‘57 series are 42mm (41.5mm by Omega) and use the Co-Axial 9300.


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