Marking on back cover after servicng from outside servicing

[Bugsat]

Is it truth that when you send your rolex watches to outside servicing, they usually mark the inside with "signature" of the back cover....

[Oceanklassik]

I'm not too sure about your situation but I came across some (non ROLEX) watches that my friends have sent for servicing and the interior of their watch cases were "marked". I guess it is some form of identification for these independent watch service technicians.

[Wafflelee]

Some outside technicians do use a marker to show the date of service.
I once witnessed a customer saying to the repairman ,his watch was just fixed a few months ago,
but when the case back was opened it showed a date two years ago.

[skydweller_sg]

Marker as in ink or engrave?

[ac_wong75]

I have sent my watches for servicing by a reputable watch technician and he will the watch with last servicing date with a erasable marker pens that can be wipe off this is to to indicate the last servicing done for the next person who needs to perform servicing to know..

[Bugsat]

Marker as in ink or engrave?

Look like a permanent marker......

[Bugsat]

I'm not too sure about your situation but I came across some (non ROLEX) watches that my friends have sent for servicing and the interior of their watch cases were "marked". I guess it is some form of identification for these independent watch service technicians.

Just out of curiousity...will the permanent marker ink corrode the inside of the watch case??

[jieming]

Just out of curiousity...will the permanent marker ink corrode the inside of the watch case??

You worry too much. The ink is dried and it applied only on case back