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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

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Fig. 5

Tissot 2481

sweep second
date: quickset by repeated pushing the crown

11.5''', Dm= 25.6mm, Do= 26.0mm
H= 5.35mm
F= 1.4mm
T= 2.0mm
21/24 jewels
f = 21600 A/h
power reserve 42h

Balance staff U2480

Stem W2696, W3106 (Seastar Seven)

Mainspring / battery
Zf2960-X, 1.20 x 9.0 x 0.115 x 280mm

1.50 x 0.90 x 0.21mm

Comments about the data

option: plastic bushings instead of dial screws (for monoshell cases, dial plugged)
without excenter regulator for Langendorf (signature Lanco or CJ, Fig.3)
equivalent to Omega 1481

in brackets US version
2451 (2452): manual wind
2461 (2462): manual wind, date
2471 (2501): automatic
2481 (2511): automatic, date
2531 (2611): automatic, 24h, date
2541: manual wind, no second
2551 (2552): manual wind, date, no second
2571 (2591): automatic, day date
2481: automatic, digital, date

Example, year: signature; shock device
1-2) 1972: 15780760, Tissot, Swiss; Incabloc
(24 jewels)
3-5) ca.1975: CJ, Swiss, 21 Jewels; 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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