Cal 283 repair manual

What do you not understand about this movement?

Unfortunately this caliber comes from an era where all the watchmaker needed was a parts list as anybody working on watches of this type were trained and skilled and needed no step by step guide.

Things changed as time advanced and Omega, among others started producing technical guides for various calibers. Some are well done and suitable for beginners while others are directed to a trained audience.

If you have any questions regarding the 283 you can post them here, there's a large pool of expertise available to you.