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Re: Caliber 879 — Guild A [message #12734 is a reply to message #12733]

Wed, 01 July 2020 06:01

Case
Messages: 1178
Registered: May 2019
Location: Cincinnati

Gruen Authority

Here is one I found in the spares drawer, to show the usual Gruen patent stamp on the front plate. It’s sn 1945102, marked Conoruma. So Conoruma appears sometime between 1939777 and here.

Would Conoruma be the same material used by Rolex, referred to as “Rolex hairspring”?

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[Message index]

		Caliber 879 — Guild A By: Case on Sat, 27 June 2020 04:25
		Re: Caliber 879 — Guild A By: thesnark17 on Sat, 27 June 2020 14:31
		Re: Caliber 879 — Guild A By: Case on Sun, 28 June 2020 03:06
		Re: Caliber 879 — Guild A By: Case on Tue, 30 June 2020 15:29
		Re: Caliber 879 — Guild A By: Case on Wed, 01 July 2020 06:01
		Re: Caliber 879 — Guild A By: Ephemerald on Wed, 01 July 2020 06:54
		Re: Caliber 879 — Guild A By: Case on Wed, 01 July 2020 20:49

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