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Ronin

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Posts posted by Ronin

  1. I have a similar plan for a Daytona project. However, the responses I received is the 21J movement is not too friendly to disable. You will need to remove the dial and hands, and possibly remove the transfer gears.

    If I ever get my work bench set back up, I will respond back. (Although mine is a 21J with seconds @ 6, and I want to freeze everything except H,M,S@6.)

    Perhaps some other experts can jump in...

  2. Hold it to your ear.

    If you have a 28,8 listen to it (28xx). If you have a 21,6 (6497 PAM, Old 21J) listen to it. Personally, I find it easy to tell by listening.

    "looking" at it, start the Chrono. If you have good eyes or a loupe, try and visualize and count the bph between each seconds hash. Slow beat your eye/count should see 6, High beat you should see 8.

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