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View picture in original size
Fig. 1

View picture in original size
Fig. 2

IWC 52 19'''H6

Features
stem wind and pin set
sub second

Data
19''', Dm= 41.95mm, Do= 43.15mm
H= 6.0mm
(winding gear +0.2mm)
F= 0.8mm
T= 2.15mm
15/16 jewels
f = 18000 A/h
power reserve 30h

Balance staff U1447

Stem W1724

Mainspring / battery
2.05 x 0.20mm

Hands
1.85 x 1.00 / 0.25mm

Comments about the data

Remarks
1904-1926, 84600
1888-1940, ~285060 (all 52)
open face calibre
bimetallic screw balance with 4 adjustment screws
Breguet hairspring
patented big bearings for crown- and ratchet wheel
barrel with Geneva stopwork
details cf. IWC 52 19'''H5

Swiss Patent 31457:
crown- and ratchet wheel with top- and bottom part, kept together with three screws each
filed 05-11-1904, Fabrique d'Horlogerie de J. Rauschenbach (CH)

Swiss Patent 55231:
dial fitting after push-button principle
filed 03-28-1911, Uhrenfabrik von J. Rauschenbach (CH)

Example, year: signature; shock device
1916: 650629, H6, IWC Probus Scafusia, +55231 - IWC Probus Scafusia, +31457

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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