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Fig. 1

Valjoux 7737

manual-wind chronograph, 60s, 10min, cam switched
countdown 10min for regatta start
sub second

14''', Dm= 31.0mm, Do= 31.3mm
17 jewels
f = 18000 A/h
power reserve 45h

Balance staff U3106

Stem W1188 / W3371
thread 1.2mm / 0.9mm

Mainspring / battery
Zf1337, 1.60 x 12.5 x 0.13 x 430mm

1.40 x 0.95 x 0.27 / 0.27 x 0.18mm

Comments about the data

1969-1978 (Valjoux 7733+7734+7736+7737: <2000000)
3 different hammers (cf. Valjoux 7733)

essentially same as Venus 188:
7730: -
7731: new balance cock
completely redesigned:
7733: -
7734: date
7736: hour counter
7737: countdown for regatta start

Example, year: signature; shock device
ca. 1972: V, 17 Jewels; Incabloc
(Valjoux 7734)

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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