Vintage Gruen: The caliber database

Home » The Gruen Model Database » The caliber database » The caliber 420ss (caliber with indirect sweeps-seconds)

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

The caliber 420ss [message #427]

Fri, 31 May 2013 15:34

JackW
Messages: 2120
Registered: May 2013
Location: Denver

Gruen Authority
Head Janitor
Site Admin

This is the caliber 420ss, a 17 jewel movement and is 11.5 ligne or 25.6 mm in diameter. This is a movement with an indirect sweeps seconds feature. Almost all parts will interchange with a 405 and the sweeps parts will interchange with the 405ss. The only difference between the 420ss and the 410ss is the size; other wise it is fully interchangeable. These movements are always marked with the caliber number in the space next to the balance wheel and the cap-jewel for the escape wheel.
index.php?t=getfile&id=224&private=0

Attachment: cal_420ss.jpg
(Size: 101.94KB, Downloaded 1677 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

Report message to a moderator

[Message index]

The caliber 420ss

By: JackW on Fri, 31 May 2013 15:34

Previous Topic:	The caliber 421
Next Topic:	The caliber 426

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Tue Jan 13 05:35:14 UTC 2026

Total time taken to generate the page: 0.00769 seconds