Russian T-54 Tank Clock

The Russian/Soviet tank clock was also produced by Molnija, Мопния, in Chelyabinsk, Челябинск, and probably for a T-54 Soviet tank. This clock, with its low serial number and aged appearance, was probably produced in the early 1950s. I found the first two photos on the internet.

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Despite the plain appearance of the dial, this is a complicated clock.

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There are four plates holding the parts together. Three of the plates are visible in this photo. The third plate was added to accommodate the large size of the mainspring barrel that enables this clock to run for five days.

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The pallet fork is normally made of steel. This one is made of brass, probably so that it would not become magnetised.

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The fourth plate is on the front, behind the dial.

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The fourth plate holds the black ring gear in place. The ring has teeth on the inside and is screwed onto the bezel. Turn the bezel counterclockwise to wind the mainspring. Pull out the bezel and turn to set the time. This robust design eliminates the need for a stem and crown, and the problems associated with them.

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Remove the cannon pinion, the minute wheel and the setting wheel to reveal the plate.

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Remove the plate to reveal the gear train. The second wheel has the pinion next to the mainspring barrel and the gear on the front side, driving the third wheel, onto which the minute hand is mounted, and through which the center wheel for the second hand comes through. The third wheel drives the fourth wheel. You can see the pinion of the fourth wheel from the front. Having driver gears on both sides of the pillar plate is an unusual feature. The steel gear on the other (right) side is part of the winding mechanism.

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Removing the barrel plate reveals the barrel, which can be removed without taking the entire clock apart, a great design feature.

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Remove the rest of the parts for cleaning and repairs as needed.

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This clock has not been serviced for decades and needs to be serviced before use. There was rust on the pivot of the centre shaft, which would soon cause the clock to fail. The Mig clock on the previous page had the same problem.

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This clock is built like a tank, (pun intended). Every collector should have one. I believe this clock is also a copy of a Jaeger Le Coultre clock.

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The balance wheel is medium grade.

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The last photo, which I found on the internet, shows the escapement in a Jaeger Le Coultre aircraft clock with chronograph, probably from the 1940s. The bridge for the balance wheel looks similar.

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