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Fig. 7

Valjoux 7750

Features
automatic chronograph, 60s, 30min, 12h, cam switched
sub second
day: quickset
date: quickset
hack feature

Data
13.25''', Dm= 30.0mm, Do= 30.4mm
H= 7.9mm
F= 1.9mm
T= 3.0mm
17/25 jewels
f = 28800 A/h
power reserve 46h

Balance staff U3777

Stem W3706 (thread 1.2mm)

Mainspring / battery
1.50 x 12.5 x 0.117 x 620mm

Hands
2.00 x 1.20 x 0.25 / 0.18 x 0.18 x 0.18mm

Comments about the data

Remarks
1973-

family:
7750: automatic, day, date
7751: automatic, day, date, month, moon phase
7753: automatic, date. minute counter at 3h instead 12h
7754: automatic, date, dual time 24h
7758: automatic, date, moon phase
7760: manual wind, day, date
7761: manual wind, day, date, month, moon phase
7765: manual wind, date, no hour counter
7768: manual wind, date, moon phase
7770: automatic, split second, date hand at 3h

Example, year: signature; shock device
1-3) ca. 1990: V8 V8DDA, VAL 7750, 17 Jewels; Incabloc
(plastic reset lever, 1. ball bearing)
4) ca. 1990: Swiss, 17 Jewels; Incabloc
(plastic reset lever, 2. ball bearing)
5) 2002: Zeno-Watch Basel, Swiss, 25 Jewels; Incabloc
(steel reset lever, 3. ball bearing)
6) 2002: Tudor, Swiss Automatic-Prince, 17 Jewels; Incabloc
(plastic reset lever, 3. ball bearing)
7) 2002: DB; Incabloc
(finish by Daniel Baumann)

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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