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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Gruen N225R

Features
manual wind

Data
6.75 x 8''', Dm= 15.35 x 17.8mm
Do= 15.35 x 18.2mm
H= 3.5mm
F= 0.8mm
T= 1.7mm
17 jewels
f = 18000 A/h
power-reserve 45h

Balance staff U2954

Stem W3031

Mainspring / battery
Zf1183, 1.50 x 7.0 x 0.07 x 250mm
original: 1.50 x 7.0 x 0.075 x 240mm

Hands
0.95 x 0.50mm

Comments about the data

Remarks

family:
224: 15 jewels
224SS: 15 jewels, sweep second
225: 17 jewels
225SS: 17 jewels, sweep second
prefix N: white instead blue hairspring
suffix R: Incabloc

Example, year: signature; shock device
ca. 1955: GXC, Gruen Watch Co, Swiss, 17 Jewels
(Gruen N225)

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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