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Re: cal 112
In Response To: cal 112 ()

Cal. 11-2

This is Cal. 11-c altered to 21,600 train. Changed the mainspring:- MgS = 1200, Mgi = 1050, M - 3.5 = 860 at 8 turns of winding. Changed the fourth wheel No.225 (72 teeth instead of 66), The escape wheel No 705 (diam. of pinion 0.67 instead of 0.73) and the frequency of the balance and hairspring
No. 721

so we need some 11c on a bridge to come from cal 11 to cal 12...does anyone have such a brdige stamples with 11c ????

a

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cal 112
Re: cal 112
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