 | Ranfft Watches | Pink Pages for Timepieces |
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| Index | Timepiece Archive, Categories | Archive: Watch Movements | Timepiece Market |
 Fig. 1  Fig. 2  Fig. 3  Fig. 4 | Bulova 10BM Features manual wind sub second Data 10.5''', Dm= 23.3mm, Do = 23.8mm H= 3.6mm F= 1.0mm T= 1.7mm 15/17/21 jewels f = 18000 A/h power reserve 41h Balance staff U1786 Stem W2087 Mainspring / battery Zf852, 1.30 x 9.0 x 0.10 x 290mm Hands 1.25 x 0.60 / 0.22mm Comments about the data | Remarks 1949-1955 Breguet hairspring only minor differences between 10BH, 10BM Example, year: signature; shock device 1-2) 1950: L0, Bulova Watch Co, U.S.A., 10BM, 17 Jewels 3-4) 1952: L2, Bulova Watch Co, U.S.A., 10BM, 21 Jewels Not for Sale! The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating. |
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