Pobeda (ZIM 2602)

About the watch

This is a Soviet Pobeda watch. The watch has been made around 1950s and arrived to me as a non-runner.
The case, dial and hands have some damage on them but for a 70 year old watch it doesn’t look too bad.

The watch is powered by ZIM 2602 movement equipped with Breguet hairspring.

Numerous fixes have been carried out in order to make it run again.

Repairs

Following fixes have been applied:

• Parts of the movement were rusted, the rust was removed
• The hairspring has been restudded with a grooved stud, allowing to position the spring more precisely after each service
• Balance cock has been replaced due to a stripped thread on one of the screws (balance jewel also had a minor crack in it)
• Balance pivots have been polished
• The lower hole of the mainspring barrel axle was worn out and prevented axle from rotating freely. To fix this I’ve drilled out the hole and pushed in a newly made bushing.
• Cannon pinion was rusted and created a lot of resistance during time adjustment—drilling out the lower part fixed the issue
• Worn out setting lever didn’t engage with winding stem properly, making it difficult to switch between winding/time setting positions. Bending the lever slightly solved the problem.
• Crystal has been replaced
• One of the jewels in the pallet bridge was damaged, so I replaced it
• Endshakes have been adjusted with higher precision than before. I ofren notice that Soviet-made movements tend to have huge endshakes in the wheel train, which can affect the timekeeping
• Adjusting the endshakes allowed to remove the pig ears under the balance bridge
• Mainspring has been replaced
• 2 screws were missing, I added them back by using donor movements

Results

The watch is running decently for its age. The movement performs within range of ±1 minute per day with amplitude of 260+ degrees which I find satisfactory for a watch of its age and quality.