Russian military wall clock – Vostok 5-CHM. Mechanical movement Vostok with 12 jewels is equipped with an anchor escapement. Monometallic balance. Power reserve 8 days.
At temperature 20±5°C, at humidity to 80% 6 days operation accuracy rate is ±90 sec. Daily temperature change accuracy at the temperature range 25°C to +50°C is not over 1 sec. per 1°C.
Antimagnetic modification. Splash-proof aluminium case with anticorrosion coating.
Diameter 210 mm, height 74 mm. Weight not over than 2,8 kg.