- Jan 17, 2020
Does anyone recognize this case mark?
I bought an 18s case for my Non-Magnetic watch
I have in my private label collection a Swiss movement made for the Philadelphia Watch Case Co.
Does anyone recognize this case mark? I have guessed Keystone, but the elements don't exactly match the data I've seen.
View attachment 755780
Thanks Bila.That is one movement you do not see every day, nice
Just to add clarity or confusion to the discussion, Philadelphia Watch Case Co. was eventually absorbed by or merged with the Keystone Watch Case Co.Does anyone recognize this case mark? I have guessed Keystone, but the elements don't exactly match the data I've seen.
Just a note to those who have looked at this article - Most of the links have just been updated.
I have had no luck with the maker, any suggestions?