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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Certina 25-672

sweep second
day: no quickset
date: set by changing 23-24h

11.5 / 12.75''', Dm=Do= 28.5mm
Dm= 25.6mm, Do= 26mm without dial mounting ring
H= 5.95mm
F= 2.55mm
T= 3.25mm
27 jewels
f = 28800 A/h
power reserve 42h

Balance staff U2822

Stem W2822

Mainspring / battery
1.20 x 10.0 x 0.11mm

1.50 x 0.90 x 0.18mm

Comments about the data

ball bearing for minute staff (Fig.2)

19800 A/h:
25-65: automatic
25-651: automatic, date
25-652: automatic, day, date
25-66: manual wind
25-661: manual wind, date
28800 A/h, ball bearing for minute staff:
25-671: automatic, date
25-672: automatic, day, date
28800 A/h, ball bearing plate redesigned:
25-68: automatic
25-681: automatic, date
25-682: automatic, day, date

Example, year: signature; shock device
1) ca. 1975: Certina, 25-682, Swiss Pat., 27 Jewels; Incabloc
(Certina 25-682)
2) ca. 1975: 25-681/82; Incabloc
(replacement base movement for 25-681, 25-682)

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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