Rolex 16030 calibre 3035

This lovely gents Rolex came in recently for a movement service, it was losing time, had very little power reserve and kept stopping. Powered by the calibre 3035 which is the predecessor to the current calibre 3135, it was the first high-beat (28,800bph) movement made by Rolex. The 3035 was a development of the venerable 15xx series and has a free-sprung balance with Breguet overcoil, contains Rolex’s patent Microstella regulating system and has an instantaneous date changeover mechanism.

Rolex 16030 calibre 3035

As usual with datejusts the caseback is a non decorated affair.

Rolex 16030 calibre 3035

With the caseback removed the highly recognisable Rolex oscillating weight is now on display along with the equally recognisable purple reverser wheels.

Rolex 16030 calibre 3035

I prefer to remove the autowind mechanism and rotor whilst the movement is still in the case.

Rolex 16030 calibre 3035

And here’s a view of the underneath of the mechanism. The rotor is supported by two jewels, an upper one and one at the bottom of the post which is part of the train bridge.

Rolex 16030 calibre 3035

With the autowind removed the movement can be uncased ready to remove the dial and handset. What a lovely dial 🙂

Rolex 16030 calibre 3035

Once I’d removed the dial you could now see the calendar mechanism, note the date disk with its open 6’s and 9’s.

Rolex 16030 calibre 3035

With the date disk and the date change wheel removed you can see the extent of the perlage decoration on the plate. Most of it’s hidden under wheels and components but Rolex still choose to fully decorate all the plates, a decision I applaud.

Rolex 16030 calibre 3035

It doesn’t take long to get down to the keyless work….

Rolex 16030 calibre 3035

….and with that out of the way this side is done.

Rolex 16030 calibre 3035

I turn the movement over and get ready to start on the motion work. Note the balance cock with the endshake adjustment screw, a handy feature.

Rolex 16030 calibre 3035

I took the power off and removed the balance, pallets and ratchet wheel.

Rolex 16030 calibre 3035

The train bridge is off here, just the barrel bridge and barrel to go….

Rolex 16030 calibre 3035

….and everything was ready for the cleaning machine.

Rolex 16030 calibre 3035

Rolex 16030 calibre 3035

After inspection the post was found to be in good order, this is usually one of the components that needs changing, the mainspring was replaced for a new one though. Everything else seemed tip top.

Rolex 16030 calibre 3035

Rolex 16030 calibre 3035

The barrel, barrel bridge and centre bridge are refitted in this shot.

Rolex 16030 calibre 3035

The train is ready for its bridge to be refitted in this shot….

Rolex 16030 calibre 3035

….and the bridge, pallets and balance are back in place here. This means the movement can now be powered up and roughly timed.

Rolex 16030 calibre 3035

I flipped the movement over to start assembling the calendar side.

Rolex 16030 calibre 3035

Ready for the date disk in this picture….

Rolex 16030 calibre 3035

….and ready for the dial in this one.

Rolex 16030 calibre 3035

The dial and hands were the next components to be installed.

Rolex 16030 calibre 3035

I then recased the movement ready to rebuild the autowind mechanism….

Rolex 16030 calibre 3035

….and once rebuilt it was fitted.

Rolex 16030 calibre 3035

The watch was closed up and then went for a 6bar pressure test….

Rolex 16030 calibre 3035

Rolex 16030 calibre 3035

….which it successfully passed.

Rolex 16030 calibre 3035

Another one good for a few more years of wear. Lovely things these datejusts, I especially like the bezel design on this model.

Rolex 16030 calibre 3035

Rolex 16030 calibre 3035

Rolex 16030 calibre 3035

2 comments

  1. Very nice. Who would have thought that as well as the ‘engineering’ aspects you also have to display artistic talent – matching the tone of the lume. Nice!

    Like

  2. What a great review of a great watch. I have the same model and I love it above all my watches. The watch has such an historical place in the watch world and especially on my wrist. Simple and understated.

    Like

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