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Gruen 315(7) [message #4949]

Mon, 26 January 2015 17:46

mikey
Messages: 709
Registered: May 2013
Location: Paris, Ontario

Gruen Master

The 315 is a 10 1/2 ligne, 15 jewel movement that is interchangeable with the 345 although this particular one may actually be a 3157 as it is a 17 jewel movement which is differentiated with having conical pivots. Parts of the 315 may also be interchangeable with the 344 , 347 & 3157 per the 1939 Material Catalogue. Mike B / Barry C have the initial production date as 1929 for this movement although i suspect this one may be from the early-mid 1930's. I'll add a 'dial off' photo at a later date.

Of course, after i posted this i saw Thojil's entry on the 3157! Embarrassed

EDIT: And...now that i have the dial off, i seem to have a broken clutch lever? I am in need of a replacement if anyone has one??

index.php?t=getfile&id=2062&private=0

Attachment: Gruen 315_3 movement.JPG
(Size: 462.02KB, Downloaded 870 times)
Attachment: Gruen 315_3 top plate.JPG
(Size: 419.72KB, Downloaded 827 times)

Still here....

[Updated on: Tue, 27 January 2015 01:49]

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Re: Gruen 315 [message #4950 is a reply to message #4949]

Mon, 26 January 2015 20:25

MikeTheWatchGuy
Messages: 319
Registered: May 2013
Location: North Carolina

Gruen Guildsman

I suspect you are right about production date. The caliber info is a little old so errors do exist here and there. The 315 is not in the 1926/1929 catalogs, but is in the 1939. I've longed for a material catalog between those 1929 and 1939 catalogs. I cannot believe they left such a large stretch between catalogs.

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