Watch Service: Rolex Datejust. Cal 3135.

Rolex Datejust

Rolex Datejust for a full service, this particular one was sent in by Peter as it has a low power reserve, is stopping occasionally and losing time. It also hasn’t been serviced for about 6 years, so its overdue and high time to get this watch back into good working order.

First job is to remove the case back, I’ve removed the rotor to give a better view of the Rolex 3135 calibre.

Rolex 3135

Watch prepped for hand removal – they are all aligned, and a protective cover is placed over the top.

rolex 3135

Dial, hands and date indicator disc removed.

rolex 3135

I continue stripping down the dial side of the movement first.

rolex 3135

The keyless works is all that remains, I wont remove that until I’ve finished stripping dow the rest of the movement.

rolex 3135

Automatic device stripped and ready for cleaning.

rolex 3135

I’m ready to move onto the base part of the movement.

rolex 3135

Barrel with mainspring removed. These are both normally pretty dirty. Ill clean the barrel by hand before putting it through my cleaning machine. This serves two purposes, firstly it extends the duration between needing to change my cleaning fluids, but also ensures the barrel is properly cleaned as I remove any particularly hard stuck old grease before it goes through the machine.

rolex 3135

Slowly I continue to work my way through the movement.

rolex 3135

Only the shock settings left on this side of the movement.

rolex 3135

Just finishing off removing the keyless works.

rolex 3135

One stripped movement ready for cleaning.

rolex 3135

The movement has been through the cleaner and its ready to be rebuilt and oiled. I start with the balance shock settings, followed by the keyless.

rolex 3135

I flip over and make a start on the other side.

rolex 3135

Train and train bridge re fitted, followed by the barrel.

Almost complete. At this point the movement will run and I oil all the jewels and pallets.

rolex 3135

The reversing wheels are epilame treated, in the exact same way that Rolex themselves would.

rolex 3135

Auto device rebuilt.

rolex 3135

Auto device is then fitted to the movement, minus the rotor, which will be fitted last.

rolex 3135

I then continue on with the opposite side, fitting the motion works and date works.

rolex 3135

The dial side complete. Next I’ll fit the dial and hands before fitting it back into the case.

rolex 3135

The case tube seal has seen better days and is being replaced.

rolex 3135

The usual timing tests and performed once the movement is cased up, its then tested for water resistance.

rolex 3135

Finally, once I’m happy with the timings and its passed water resistance, it moves onto 5 days of mechanical tests. As always, over the 5 days I will test the automatic device to ensure the watch its automatically winding as it should, I’ll test the timing after 24 hours to ensure its within brand tolerances, power reserve is checked, as well as the running and time keeping of the watch in real time. These tests all ensure the watch is performing exactly as it should be, before being returned to the owner.

Thanks for reading.

The Watch Professional

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