Rolex Oyster refreshment

[anona]

Hello everyone,

I prefer to warn right now I'm a pure newbie in watches but you will see for yourself I think and i'm french with a poor english ...

I found a watch belonging to my grandfather, in dirty condition, it has not been used for at least 58 years, I did some research without finding the exact model, but i found exactly the same model under the "Oyster" brand instead of mine which is "Rolex". The one i found is an Oyster Junior Sport from the 30s, so mine is from the same period.

I tried to remount it manually and suprise it still works :) !!

I want to refresh it a little bit, and i think the hard part will be to find the same Plexiglas, because because it doesn't seem recoverable..

Sorry for the poor quality of my photos :

If anyone has ever seen this model or know more info about it..

I think it's a cal. 59 (same as FHF30).

I found some charasteristics of her Oyster sister, i think it's the same (HERE) :

Rolex men's wristwatch, Oyser Junior Sport model.
Period: late 1930s
Hand-wound mechanical movement with 16 jewels, and seconds sub-dial at 6 o'clock.
Steel casing diameter: 30.5 mm
Silver-coloured dial with patina, Arabic numerals and hands painted with Super-LumiNova.
Crystal: Plexiglas.
Screw-in caseback with external etching, ref. 3136

Thank you in advance for your help