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Fig. 1

View picture in original size
Fig. 2

Valjoux 7730

manual-wind chronograph, 60s, 30/45min, cam switched
sub second

14''', Dm= 31.0mm, Do= 31.3mm
H= 6.0mm
F= 0.6mm
T= 1.85mm
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

1966-1973, 175000
same as Venus 188, but mobile stud carrier

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. 1970: - ; Incabloc

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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