zOwie Omega Discussion Forum

Hi Guys,

I have a MK III with an "R" marked Rotor. The movement number is on the Rotor & not on the movement.

Here's my movement ( I deliberately blurred some of the movement number :-) but the rest of the blurs are not deliberate :-( ) :-

A couple of years ago, I asked Omega for the details of my watch. All they could/would reply is that "R" rotors are replacements. This has been fitted after the watch left the factory. They keep no records of these Rotors/movements & cannot tell you when they were manufactured/sold.

You have no way of knowing if the entire movement was swapped or just the Rotor. ( but I have a theory here - see below )

I have seen 1040/1041 movements with only "Omega Swiss" on the rotor. Theory :- Could it be that these are replacement Rotors ? & the replacement Movements have "R" rotors.

Here's an example

This in itself is an interesting movement/picture.

It is clearly marked 1040. But I can see marking indicating "two Jewels" "Positions" & "perature". So this appears to be a mix of 1040 & 1041 parts. ( This movement was being sold with a used Speedy 125 - 1041 dial & handset )

The Rotor however is a different shape & has none of the usual markings.

This is the picture, of a 1040 movement, that Chuck has in his Omega "Mark" speedmaster article.

As you can see the rotor shape is the same as the "unmarked" rotor & different to the "R" Rotors.

So, to sum it up. There are 3 types of Rotor.

• "Normal" - with a movement number on it. Omega have details of these movements.
• "Unmarked" - Same shape as "normal", only stamped with "Omega Swiss". I don't know enough about these.
• "R" Rotors - replacements , different shape. There are no details/records available for these Rotors/Movements.