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View picture in original size
Fig. 1

IWC 53 18'''H7

Features
stem wind and lever set
sub second

Data
18''', Dm= 40.5mm, Do= 40.9mm
H= 7.0mm
(winding gear +0.3mm)
F= 1.0mm
T= 3.0mm
15/16 jewels
f = 18000 A/h
power reserve 30h

Balance staff Ronda 1113

Stem W1593

Mainspring / battery
2.35 x 0.21mm

Hands
1.85 x 0.62 / 0.22mm

Comments about the data

Remarks
1903, ~300
1889-1927, ~176820 (all 53)
hunter calibre
bimetallic screw balance with 4 adjustment screws
Breguet hairspring
barrel with Geneva stopwork
details cf. IWC 52 19'''H5

Example, year: signature; shock device
1903: 287481, JWC
(IWC 53 19'''H7)

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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