How to 100% know if a dial is aftermarket?

[Ninja Master]

Hi all

I know there have been posts like this in the past, but the answers are all a bit vague.

Let's say I buy a second hand/grey OP with a red dial (discontinued, so kind of expensive now).

How do I know it's not a more common model with an aftermarket dial?

Is there a way to know 100% either pre or post purchase?

Thanks

[Oryx]

Check the dial code on the white swing tag - or take to an RSC and ask them to confirm.

[Ninja Master]

Originally Posted by Oryx

Check the dial code on the white swing tag - or take to an RSC and ask them to confirm.

Thanks for this.

Can you explain how to "Check the dial code on the white swing tag".

Sorry if that's a dumb question...

[Ninja Master]

Ah, nevermind, I got it, thank you.

[hojlund]

this is just like asking how to be 100% a watch is authentic, the only way is take it to the rsc.

[Giovannibravo]

Originally Posted by Oryx

Check the dial code on the white swing tag - or take to an RSC and ask them to confirm.

The RSC will take the dial off the watch and see whether it has a service code on the back?

[Ninja Master]

Originally Posted by hojlund

this is just like asking how to be 100% a watch is authentic, the only way is take it to the rsc.

Can they check there and then, or do I have to send the watch for a service and hope it comes back with minimal scratches?