Internet Horology Club 185
Hamilton Crystal Indentification Number ("Brock")

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https://ihc185.infopop.cc/eve/forums/a/tpc/f/9886009961/m/7191093791

January 09, 2006, 13:18
Chris Schirren
Hamilton Crystal Indentification Number ("Brock")
Hi,
I am still looking for a crystal ID number for a Hamilton Brock and in due course some others as well I guess. NOS crystals are for sale on eBay all the time but I don't know what to look for. My collection of crystals which look like they fit (but don't) is big enough now. It's not just the dimensions, its also the curve. Anyone out there who could give me a clue? (No... don't want to send the watch anywhere, my all time favorite!)

Thanks & happy new year!

Chris.
January 09, 2006, 18:56
Cary Hurt
Chris,

In BB/Perfit (glass cylinder) it's MX 2345
In G-S, it's CMX 358-10
IN SUC/Rocket it's RMS 157-96.

Just for reference, G-S also notes that a Dunkirk Crystal will fit the Brock.

Hope this helps.

Cary
January 10, 2006, 10:27
Chris Schirren
Thanks Cary, that looks good and shall see what I can find.

Chris.