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Fig. 1

View picture in original size
Fig. 2

Venus 122

timer, 60s (0.2s), 30min, pillar wheel
option: 30s (0.1s), 15min
option: addition timer
stem wind
sweep second

18''', Dm= 39.9mm, Do= 40.9mm
H= 6.8mm
(winding rocker +0.9mm)
F= 1.3mm
T= 3.8mm
7 jewels
f = 18000 A/h:
power-reserve 18h
f = 36000 A/h:
power-reserve 9h

Balance staff U1542

Stem W1735

Mainspring / battery
Zf107, 1.60 x 14.5 x 0.17mm

1.22 / 1.22mm

Comments about the data

open face calibre
stop function with pillar wheel
glassed spare-parts compartment
These movements are often listed only as Leonidas movements. As they often have the Venus signature even if applied in Leonidas watches (cf. Leonidas 121), they were likely made by Venus, some or all probably exclusively for Leonidas.

120: 3/4 plate
121: escape-wheel cock
121R: escape-wheel cock, split second
124: escape-wheel cock, hour counter
122: new bridge layout

Example, year: signature; shock device
1949: old data sheet

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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