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Fig. 1

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Fig. 2

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Fig. 3

Revue 54

manual wind
sub second

9 x 12.5''', Dm= 20.0 x 28.0mm
Do= 20.6 x 28.0mm
H= 4.0mm
F= 0.5mm
T= 1.5mm
15 jewels
f = 18000 A/h
power reserve 36h

Balance staff U758

Stem W757

Mainspring / battery
Zf704, 1.20 x 12.0 x 0.13 x 390mm

1.45 x 0.81 / 0.20mm

Comments about the data

pattern for the space-efficiancy movement Urofa 58
indirect sub second
shock protection by elastic pivots (Bild 3):
Top: The steady transition from the pivot to the rather thin end of the staff inhibits beaking at this spot.
Bottom: On a conventional staff the sudden transition from the pivot to the thick arbor end enhances the danger of breaking at this spot.

Example, year: signature; shock device
ca. 1940: Revue, G.T, 54 - GT (Gédéon Thommen); Revue-Thommen

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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