Planet Ocean Chrono 9300 - Rotor dust??

Speed2Sea

It's difficult to tell from the photographs, but could it be rust and not dust.

Archer

It's not rust or red paint - it's the products of wear...here's what that looks like when a pivot on a wheel wears:

And what the pivot looks like:

If I had to guess, it's likely the reversing wheels that are wearing out - they are very hardworking parts so this is not unusual. Service will take care of it, and if you get the old parts back please post what they replaced.

Archer

The watch I showed photos of above had been in use for 7 years when I received it for service...

The co-axial escapement claims to have longer service intervals, but if you replace the tires on your car with more long lasting tires, dies that mean you have to change the engine oil less frequently?