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Fig. 1

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Fig. 2

Heuer 943

timer, 60s (0.2s), 30min, pillar wheel
option : 30s (0.1s), 15min
stem wind
sweep second

18''', Dm= 39.75mm, Do= 40.6mm
incl. balance cock and dial rests:
H= 7.4mm
F= 1.8mm
T= 4.3mm
7 jewels
f = 18000 A/h
power-reserve 22h
f = 36000 A/h:
power-reserve 11h

Balance staff U1485

Stem W1734, W1741, W1856...W1860
(further for particular Heuer models)

Mainspring / battery
Zf3205, 1.70 x 14.0 x 0.16 x 430mm

1.30 / 1.30mm

Comments about the data

open face calibre
stop function with pillar wheel
Likely made by AS, but listed also as Heuer 943, Heuer 960-987, and Leonidas 943, mostly equal, occasionally with minor differences, and sometimes with the wrong diameter 19'''.

Example, year: signature; shock device
ca. 1925: 532981, N, W, L
(AS 943, 36000 A/h)

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.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft

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