Vintage Gruen: The caliber database

Home » The Gruen Model Database » The caliber database » The caliber 405 (the work horse of the 1940s)

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

The caliber 405 [message #418]

Fri, 31 May 2013 03:13

JackW
Messages: 2001
Registered: May 2013
Location: Denver

Gruen Authority
Head Janitor
Site Admin

The below is a caliber 405, 17 jewel movement and is marked next to the balance wheel with the caliber number. Size is 10x11 ligne or 22.56mm x 24.81mm.
index.php?t=getfile&id=215&private=0

This one is a later version of the 405. In most catelogs the 405 movements are divided into old model and new model and dealt with a variation of the setting bits and a change in the set stem. The above is an 'OM' 405 and the following is the 'NM' 405.
index.php?t=getfile&id=216&private=0

It should be noted that the calibers 406, 410, 411, 420, 421, 425 and 426 are all based on the 405. Difference is mostly round or tonneau-shaped movement.

Attachment: cal_405_c1940.jpg
(Size: 101.03KB, Downloaded 1079 times)
Attachment: cal 405_c1943.jpg
(Size: 110.01KB, Downloaded 1075 times)

All I know is based on hard work & writing by others. I can only aspire to augment this body of knowledge. If I am wrong it is because of my own failings. -me

"If I have seen farther it is by standing on the shoulders of giants." - Newton

[Updated on: Fri, 31 May 2013 16:02]

Report message to a moderator