I have a Waltham wrist watch Cal 238 (17 Jewels). I’m at the point where i need to get it on the TimeGrapher. Does anyone know the lift angle? Everything I’ve found doesnt list it, it’s actually blank. Is it 52? I can send pictures if needed. Thank you all!

I have an old Waltham wrist watch and one of the diamond indexs fell off. Anyone know where I can source a new one? My googling has me all over from ebay to AliExpress but none of them are even close to sizing. I have the 10 o’clock position, but the top most 12 is missing. I measured 1mm x 2mm. It’s for a manual wind Waltham cal 238 7Jewel. I can provide more pictures if anyones interested.