Age old question, but I’m curious if I am thinking correctly about this.

This dial is for the FE - 140 movements that were released in 1975. Would I be correct in assuming this NOS dial made for this movement would be Tritium? Due to the year the movement was released?

Hi everyone! I think I finally found a weaker replacement to the mainspring for the Benrus DS1D I’ve been working on. This has had galloping issues with a standard mainspring (1.50 x 0.100 x 290 x 9.0 mm). Will a mainspring with the dimensions of 1.50 x 0.095 x 320 x 0.9 work and have less power in this? Thanks!

This is phase one of cleaning and lubricating.

I successfully disassembled it !! Which is already a win since one of the springs decided to take off and fly... (but it was found!!)

I have Hexane and IPA, but I was thinking about using some lemon juice or WD40 before that?
Also there is some on the backside of the dial.

Suggestions??

Hey, I’m needing a career change and I’ve ultimately found watchmaking is something that works really well for me. I went ahead and applied to the Rolex Watch Training Center, but I know it’s quite a long shot to get in. Should I apply to NAIOSW as well? Would it hurt my chances of getting in to RWTC?

It's a Gira-Watch 15 Jewels from 1950 (aprox).