Today’s blog post will continue with the overhaul of a Rolex 3135 movement.  We will go over the reassembly process, oiling and buffing.  After the movement comes out of the cleaning machine, the parts are unpacked from the cleaning basket and the process starts.  I normally make a quick check to see if all the parts that went into the machine, are also there when it came out.  Sometimes parts “disappear” in the basket.  A bit like when you do laundry and for some reason a sock is gone. The machine has been known to eat a small part or a  screw!

The first part that is installed in the main plate is the center post:

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After the center bridge is installed, the train wheels are put into place


Mainspring is oiled and barell cap ready to be installed


Train bridge is installed


A little oil on the train wheel pivots

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Next the barell bridge


Barell top jewel oiled


Now we flip the movement over and begin work on the dial side and date.


Date back together.   Now on to the timing machine.mir_20160330_095408Movement cleaned and running well on the timing machine.   Rolex spec’s are -4 to plus 6 seconds a day.  I normally shoot for 3-5 seconds fast.  I always l regulate it fast, customers hate it when their watch is slow!

timing machine

Automatic unit is next to be oiled and put back together.

auto reverser wheels getting some oil
auto unit back together and ready to install

The movement is again flipped over and the dial and hands are installed.  Here comes the tricky part, getting the hands set so that the date changes at 12:00.   This normally takes a few trys before the hands pass inspection.

Case now needs some attention.  Here is a before picture of the case side and dirty case tube.

before buffing and old gasket installed
after buffing, clean and a new tube gasket installed
case before polishing
Movement back in a nice clean case. New case back gasket installed
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Watch buffed, movement in place, gaskets changed. Ready to return to my customer