Antique Rolex watch

Hello I’ve just rediscovered this lovely watch, something else I got to sell but haven’t done yet, I think it’s deco , hopefully a watch expert can tell me more, I think it’s rare as co branded, the company was operating in the 20s I think, it needs a hand because one came off and then a bit broke off & I lost it, nobody seems to want these watches as big saucer size watches seem all the rage