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electronically controlled tuning fork
mechanical hack feature
12.5''', Dm= 27.7mm, Do= 28.75mm
H= 5.5mm (4.9mm between plates)
f = 360Hz
Stem Bulova 2140
Mainspring / battery
387 (original, mercury), 394 (replacement, silver odixe, adapter necessary)
1.30 x 0.85 x 0.20mm
Comments about the data
setting handle at the bottom
4 Kif-Duofix combined settings
The hack feature is realized with an extended setting-wheel spring, blocking the fork. So a 214 can be easily converted to a 214H. But it is not worth while: The watch doesn't start immediately after flipping down the handle, because the fork needs some time to restart oscillating.
nickel plated, up to 1968 / gilt since 1968:
214H/2141: hack feature
214HN/2142: hack feature, second time zone
-/2143: since 1970, features unknown
Example, year: signature; shock device
1962: M2, Bulova, U.S.A., Pat.2.971.323
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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