Rod, muy bonita esfera. Posiblemente ya sepas datos de este calibre pero los dejo para constancia.
Fig. 1
Fig. 2
Fig. 3
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Fig. 6
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Tissot 784-2
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Features
automatic
sweep second
date: set by changing 21:30-24h
Data
11.5''', Dm= 25.6mm, Do= 26.0mm
H= 5.35mm
F= 1.4mm
T= 2.0mm
21 jewels
f = 18000 A/h
power reserve 45h
Balance staff
U2480
Stem
W2696, W3061 (Seastar Seven)
Mainspring / battery
Zf2960-X, 1.20 x 9.0 x 0.115 x 280mm
Hands
1.50 x 0.90 x 0.21mm
Comments about the data
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Remarks
1967-1972
option: excenter regulator
option: without dial screws for monoshell cases (dial plugged)
detail modifications during production periode (cf. photos)
family/Generations:
in brackets US version
781: manual wind
782: manual wind, date
783 (785): automatic
784 (786): automatic, date
787: manual wind, 24h, date
788 (798): automatic, 24h, date
791: manual wind, no second
792: manual wind, date, no second
793: manual wind, day, date, no second
794 (796): automatic, day, date
884: like 784-2, but polymide bearings
894: like 794, but polymide bearings
suffix -1: new Incabloc, date jumper with long hole for date change by forth- and back setting
suffix -2: modified barrel arbor and -bridge
Example, year: signature; shock device
1-3) 1967: 9782129, Chs. Tissot & Fils, Swiss, 21 Jewels; Incabloc
4-6) 1972: 14324873, Tissot, Swiss; Incabloc[/TD]