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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Citizen 7450

Features
automatic
12h- und 24h-Anzeige aus der Mitte
sweep second
date: quickset
hack feature

Data
12.5''', Dm= 28.05mm, Do= 28.4mm
H= 4.8mm
(ball bearing +0.35mm)
F= 1.15mm
T= 1.8mm
21 jewels
f = 21600 A/h
power reserve 41h

Balance staff Citizen 039-61
balance with hairspring

Stem Citizen 065-99

Hands
? x 1.52 x 1.00 x 0.17mm

Comments about the data

Remarks
1971-
jewel bearings for barrel

family/generations:
7200, 7210, 7220: 28800 A/h, 26 jewels, day, date
7230: 36000 A/h, 28 jewels, day, date, chronometer, hack
7270: 28800 A/h, 21/23/25 jewels, day, date
7280: 28800 A/h, 23 jewels, day, date
7290: 28800 A/h, 21/23/25 jewels, day, date, hack
7400: 36000 A/h, 31 jewels, date
7430: 36000 A/h, 28 jewels, day, date, chronometer, hack
7450: 21600 A/h, 21 jewels, date, 12h- and 24h hand
7470: 21600 A/h, 21 jewels, date
7610, 7620: 28800 A/h, 26 jewels
7611: 21600 A/h, 25 jewels, skelettonized, hack
7700: 28800 A/h, 24 jewels, day, date
7710: 28800 A/h, 26 jewels, day, date
7730, 7740: 36000 A/h, 28 jewels, day, date
7750: 36000 A/h, 31 jewels, date
7760: 28800 A/h, 26 jewels, date, golf score counter

Example, year: signature; shock device
1970: S, Japan, Citizen, Japan, 21 Jewels; Parashock
(Citizen 7470)

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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