Signature Watches/Chrono24/Bob's Watches

[KingDavidRolX]

Hi. I am new to the forum. I have owned a Rolex Air King for about 20 years. Love it. However, it recently stopped working. I am afraid something broke internally. It is genuine. However, the band and diamond bezel are aftermarket. I am told by the local AD that Rolex will not work on it because of the aftermarket band. (I have the original bezel and could put that back on to send for repair.)

Any recommendations for a qualified and reputable repair shop that I can trust to repair my watch? There is no one local.

Also, I would like to buy a used Rolex Date/DateJust. (Self winding only).

I have read good information about Bob's watches. However, they do not have what I am looking for.

I have read some good review about Chrono24. Also, some warnings. I have found a watch that I really like on C24. I keep seeing to do deep research on the actual seller. I am trying.

The seller is Signature Watches, 47 W 47th, NYC. I can't find much about them. Nothing bad. Very little of anything. Is anyone familiar with them at all?

Would truly appreciate advise.