Elgin Waterproof Crystal

[The_Dude]

Hi All!

I need some help identifying Elgin's early waterproof crystal. The dimensions are 21.6mm long by 18.0mm wide. It's a CMX style crystal with a double curve but have wide flanges. The closest I could find is CMX324-13C. Please see attached picture.

Thanks in advance!

 

[diveboy]

is that an Edgewater ?

case back number should be 6533

if so

SUC RUM 155-15
GS CMT 356-4
GS CMX 329-33 ( I think this one is the one you want as the others have curves on the side and not straight)

 

[The_Dude]

Yes, this is an Edgewater case. GS CMX 329-33 is the correct crystal. Thanks!

 

[Dave Haynes]

Wyler used these cases along with several other brands, I have A Croton in one, a wartime Wyler called Defender. They usually used the ETA 1000 movements.