Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: Watch accuracy
    From: John Kabel
    Date: 2001 Nov 16, 6:11 AM

    I found it easy to plot my watch's loss or gain for a month, to see if the drift
    was linear.  I found that it was.  If you do this, and find a predictable drift, it
    would be easier to simply build that error into your calculations than keep
    hassling with adjustments.  I would never let the drift get past 20 s or so,
    because you can then get confusion on the minute readings.  There is
    something to be said for keeping the number of adjustments down.  I believe
    that it may affect the mechanics of any analog movements over time if
    adjustments are frequent.
    
    For the record, my Casio gained 13 s in 30 d.  My current analog Seiko gains
    4 s every 20 d, but I am still checking.
    
    John Kabel
    London Power and Sail Squadron
    London, Ontario, Canada
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.
    Email:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site