Vintage Rolex questions.

[Stvncwby]

I have a Rolex serial number 135000. Says either 1939 1941 or 1954.. my questions is on the model 12 o'clock position says beveto I believe scratch up hard to read.. and model number looks to be 6533 or 6532 or 6522 hard to read also scratched.. I've had this watch for around 20+ years.. it has a diamond bezel.. when was bezels introduced.. iam assuming it's a add-on?. Has 48 diamonds as what Rolex used.. the bezel and clear top has came over the years.. it's been in a jewelry box and still keeps time but all the dot and or lines have came off the face of it.. were in Tennessee could I get it professional repaired with new band.. also when did Rolex put above the model# Rolex design and or original rolex design..? As mine says beveto

[Dr.Smellody]

1954

And yes, an add on.

[Tools]

Needs more research and perhaps some photos, but here are some guesses.

Brevet was used on Rolex watches and means patented/registered, just not in English like we are used to.

An early Oyster Perpetual is reference 6532, likely from the 50's, and could have different bezels fitted, including diamond channels.