Glashutte Original caliber GO 39-50 found in a Senator Perpetual Calendar watch with 48 jewels with a 21K gold rotor. There are several variations of the caliber 39.
21k rotor
Brand Glashütte Original Caliber Number GO 100-07 Base Caliber In-house Movement Type Automatic Jewels 59 Power Reserve 55 hours Vibrations...
Brand Glashütte Original Caliber Number GO 90-01, GO 90-12 In-House Yes Movement Type Automatic Dimensions 32.6mm x 7mm thick Jewels...
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Active Caliber Listings
My apologies, I missed that somehow.
Hi Gary L, you are correct. Please see the SW300-1 here and the SW330-1 here.
Hello everyone, I think the SW300 is Sellita’s version of the ETA 2892-A2. The GMT…
As far as I know, this caliber was produced in the mid-eighties to the mid-nineties
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