Tokunaga on: Explanation about the two adjusters on the 7C46 movement - Seiko & Citizen Watch Forum Japanese Watch Reviews, Discussion & Trading
Reply
 
LinkBack Thread Tools
Old 03-04-2010, 01:13 PM   #1 (permalink)
Senior Member
 
Join Date: Mar 2010
Location: Denmark
Posts: 1,128
Points: 2 (+)
Default Tokunaga on: Explanation about the two adjusters on the 7C46 movement


Authored by Tokunaga
Question:

Could you explain the purpose of the two adjusters on the 7C46 movement?
One is marked + and one is marked -. How are these used to adjust the rate of the movement?


[hr]
Reply:

The markings (+) and (-) are for the purpose of time accuracy adjusting.
It needs a special technique to do this, you can do the following process.

(1)Confirm the appropriate pattern to be cut over the antimagnetic shield plate.
(-) pattern : to lose approximately 0.26 sec./day
(+) pattern : to gain approximately 0.26 sec./day
(2)Take off the antimagnetic shield plate.
(3)Cut the pattern on the circuit block.
(4)Remove the sludge completely.


Ikuo Tokunaga




Ikuo Tokunaga

Picture credit: Seiko
__________________
"That a wristwatch is a small celestial theater. It is a small sky. A device for the measure of shadows." -Gabriel Gudding

Harry, Denmark is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Seiko & Citizen Watch Forum Japanese Watch Reviews, Discussion & Trading forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in


Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is it possible for a new 7C46 movement to 'loosen up' . . . ? seakofreako THE JAPANESE WATCH DISCUSSION FORUM 3 02-02-2013 08:16 PM
WTB: 7C46 movement, preferably with dial and hands diverx SEIKO & CITIZEN TRADING POST 0 06-27-2012 09:16 AM
Does anyone know the hand sizes of a 7C46 movement ? TheTigerUK THE JAPANESE WATCH DISCUSSION FORUM 1 07-31-2011 03:02 PM
automatic movement for 7c46-7009 SQ bender57x THE JAPANESE WATCH DISCUSSION FORUM 4 07-21-2010 02:00 PM
Tokunaga on: Explanation about the materials of watch glass Harry, Denmark The Tokunaga Archives 1 03-04-2010 04:06 PM


All times are GMT -4. The time now is 02:37 AM.



Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.