The largest independent, non-commercial, consumer-oriented resource on the Internet for owners, collectors and enthusiasts of fine wristwatches. Online since 1998.
Informational Websites ChronoMaddox -- the legacy of Chuck Maddox OnTheDash -- vintage Heuer website Zowie -- Omega information
Discussion Forums ChronoMaddox Forum Heuer Forum Omega Forum
Counterfeit Watchers ChronoTools Forum ChronoTrader Forum

zOwie Omega Discussion Forum

Opened July 1999, zOwie is the Internet's first and longest running discussion forum dedicated to Omega brand watches.

Feel free to discuss pricing and specific dealers. But 'for sale' postings, commercial solicitation and ads are not allowed. Full archive of all messages is accessible through options in the Search and Preferences features. Privacy, policies and administrivia are covered in the Terms of Use.

For the answer to the NUMBER #1 most frequently asked question here--for details or value of a specific older Omega watch you have--go to: Tell Me About My Omega. Learn more about How To Include Photos and HTML In Your Postings. To contact someone with a question not relevant to other readers of the forum, please click on their email address and contact them privately.

Re: Omega seamaster 1959 *LINK*
In Response To: Omega seamaster 1959 ()

You calibre 491 is the 19 jewel version and almost identical to cal 471, which then morphed into calibre 501. This family of cakibres was the first bi-directional rotor series.

Some people point to this model as being problematic because of perceived wear in the auto winding system. There is some evidence of click wear in the first breduction wheel of movements that were not serviced regularly, although from the older generation watchmakers that Ive communicated with on this series, it appears that this issue has been exaggerated, mainly because of the write up of this problem in Hampels 'Automatic Wristwatches'

I did an essay on the 50X series covering this point at http://users.tpg.com.au/mondodec/movement2.pdf

Cheers Desmond

: Hi,
: I've recently bought a 1959 seamaster with sub seconds. Can anyone
: give me any information on the 491 movement in it, as I can't
: find a whole lot of information on it?

: Thanks & Best regards

: Darren

http://users.tpg.com.au/mondodec/movement2.pdf

Messages In This Thread

Omega seamaster 1959
Re: Omega seamaster 1959 *LINK*
Re: Omega seamaster 1959
Current Position
Chronocentric and zOwie site design and contents (c) Copyright 1998-2005, Derek Ziglar; Copyright 2005-2008, Jeffrey M. Stein. All rights reserved. Use of this web site constitutes acceptance of the terms of use. CONTACT | TERMS OF USE | TRANSLATE