RYSK KLOCKA SLAVA.

Fungerar och håller tiden bra. diam. 41 mm.Made in USSR.Watch cleaned and oiled.
MEKANISM
Slava 2428
Features
manual wind
sweep second
date: set by changing 21-24h
Data
10.75''', Dm= 24.0mm, Do= 25.0mm
H= 3.8mm
F= 1.3mm
T= 2.0mm
21 jewels
f = 18000 A/h
power reserve 47h
Hands
1.58 x 1.03 x 0.13mm
Remarks
indirectly driven minute allows a very big balance
two barrels coupled in parallel use the remaining space most efficiently
Attention! Never, never ever unlock the stem unless you have pulled the crown to setting position. And never insert the stem without pushing the release button, even not if the collar towards the square is conical to lift the set lever. Else you have a high chance to mix up the parts of the setting works, and rearranging them is much more troublesome than in most other movements.
family:
2414: manual wind, date
2416: automatic, date
2427: automatic, day, date
2428: manual wind, day, date
2429: manual wind, no second, day, date
Example, year: signature; shock device
ca 1980: 253297, 21 Jewels; Aera-Slava