Vintage Gruen: The caliber database

Home » The Gruen Model Database » The caliber database » Caliber 615 (7.75L, Round, Extra Precision, 16J)

Show: Today's Messages :: Polls :: Message Navigator
E-mail to friend

Re: Caliber 615 [message #14472 is a reply to message #14467]

Thu, 04 February 2021 20:06

Case
Messages: 1178
Registered: May 2019
Location: Cincinnati

Gruen Authority

Tangled is right, Gary—but it’s my mind, piecing it together after 100 years. The chain sometimes involves a few steps, though, and all of these are variants of an FHF ebauche.

Aegler was finishing similar calibers in different sizes (see the Rolex cal 59). The second link above (small Rolex) is basically a stock Glycine 80. Too bad we can’t see the setting bits!

Look at dial side of Dr. Ranfft’s Glycine 80: you’ll see this 615 has different milling for the bits--Glycine won't fit.

I was just shocked to see this unique bridge layout show up in Vertex. TBD.

Report message to a moderator

[Message index]

		Caliber 615 By: Case on Fri, 15 January 2021 03:16
		Re: Caliber 615 By: Case on Fri, 15 January 2021 20:47
		Re: Caliber 615 By: Case on Thu, 04 February 2021 14:08
		Re: Caliber 615 By: Gary on Thu, 04 February 2021 16:35
		Re: Caliber 615 By: Case on Thu, 04 February 2021 20:06
		Re: Caliber 615 By: Barney Green on Thu, 04 February 2021 21:04
		Re: Caliber 615 By: Case on Fri, 05 February 2021 05:17
		Re: Caliber 615 By: Barney Green on Fri, 05 February 2021 13:25
		Re: Caliber 615 By: Case on Tue, 07 September 2021 02:43
		Re: Caliber 615 By: Barney Green on Tue, 07 September 2021 07:01
		Re: Caliber 615 By: Jenneke on Tue, 07 September 2021 08:37

Previous Topic:	The Cal 870/871
Next Topic:	Cal 103

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Jun 07 15:05:41 UTC 2025

Total time taken to generate the page: 0.00933 seconds