Masahiro Kikuno and his new project - Mokumegane dial

Nov 27, 2013,19:12 PM
 





This report is sort of the progress report of his new project.  Please see: ahci.watchprosite.com /
He continues to work on to improve further and complete, and he showed me the second prototype and his old creation he made when he was still at the watchmaking school.

1. Mokumegane (http://en.wikipedia.org/wiki/Mokume-gane )
I was shown the actual process to make "Mokumegane" dial - it takes about a week to complete....  Wow....

The right one was the prototype I saw the last time.








The second prototype.  A bit reddish color overall by adding a bit more copper in the dial composition.  More oxidized case.




ETA6498 based - sure, he wants to make his own movement on the next one, but 6498 is robust enough and he made some modification.




The first prototype is just plain hairspring.




The second prototype has different finish pattern on the barrel gear, and a counterweight has been attached to the hairspring to eliminate the position difference - the other movement prototype at his atelier is now showing 3 sec deviation per day at ANY position.  The theory, logic and implementation are all classified - I heard it, but sorry, I can't disclose.












Now THIS is the "Mokumegane" dial BEFORE.  (well, actually, after several times hammed)




As you can see, in this case, 1mm copper plate and 0.5mm other alloy plate are heated and glued together - total 22 metal sheet.  The original size was 2cm x 4xm.  After several time hammering.




This is almost a week of hammering (all manual, his own hand hammered) the above thick metal sheets.




This is about 1.5mm and the final thickness will be 0.8mm.  Several more hammering to go.




He does not actually punch the holes, but hammer with sharp side of the hammer from the back and polish the dial side to smooth, thus make such a beautiful pattern.  He continues the process for a few more days.




From 2cm x 4cm 22-24 sheets, he can make only enough for 2 dials after one week of hard hammering with his own hand - he now sort of regrets choosing the method as it takes more time than he expected and not sure how to make many more of this model once it is ready to be sold.....




Notice more oxidized case (bronze).




















2. And his very earlier model which he made while he was still at the watchmaking school.












Perpetual calendar Tourbillon








48 months sub dial.




Date dial








Several month after he made this, Breguet announced "La Tradition" and Masahiro was so surprised smile












He was first thinking of making a flying tourbillon, but changed his mind to make normal tourbillon.




These watches will be featured in NHK (Japan's National Broadcaster) program about watchmaking early next year.




Thank you Kikuno-san.

Please keep up your good work.  Looking forward to the complete of this new model and your next project!

Best,
Ken
This message has been edited by KIH on 2013-11-27 19:10:32


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