Reference Tables

UG Polerouter calibers

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CaliberYear of IntroductionDimension (mm)Thickness (mm)Vibrations/HPatentJewelsSpecifications
138 SS1948 (1954 for Polarouters/Polerouter)28.25.5518.000n/a17Central second
2151955 (Patent applied for)284.118Patented Rights Pending / 32980528No Date / 60h power reserve / Rotor pink gold plated / +fausses côtes de Genève /
Earliest serials with Patented rights pending under the rotor
215-07195828.04.118.00032980517No Date
215-1195828.05.1518.00032980528Date
215-17195828.05.1518.00032980517Date
215-91959/6028.04.118.000*32980528No Date
215-971959/60284.118.000*32980517No Date
215-21959/6028.04.718.00032980528Date
215-271959/6028.04.718.00032980517Date
218-9circa 196028.04.718.000*32980528No Date
218-97circa 196028.04.718.000*32980517No Date
218-2circa 196028.04.718.00032980528Date
68circa 196528.04.118.00032980528No Date
1-68circa 196528.04.118.00032980528No Date - without fine hairspring adjustment
69circa 196528.04.718.00032980528Date
1-69circa 196528.04.718.00032980528Date - without fine hairspring adjustment
71late 1960's 27.03.921.60025No Weekeday
72late 1960's27.04.621.60025Weekday + date
60 (Electric)196325.65.51800014Electric : power consumption 5uA, 1.4 V, 12mth battery life
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* Described as high beat 21600 vph, but no physical (i.e. timegrapher) evidence to suggest this is true.