My Posts

It’s not difficult to find passionate amateur but very scarce to find ardent and well educated journalist in this field. The reason is very simple: It needs diligence, budget and manner. Fortunately you have all. This time, Chronos Japan covers talk session among you, Mr. Gisbert Brunner and me. We

Ken-san, Yes that’s the real mystery. No need to accelerate drive train if the black box can give stable rotation on “Mobile de milleme” a.k.a 1/1000th wheel. But the rotation of 1/1000th wheel is not stable as shown in this figure (that the reason why F.P.Journe could not give exact speed on his 1/

Thank you, Ken-san and PuristS. The “Black box” captured my attention, so I gave some questions to Mr. Gomilla. MH : Is that a sort of regulator system used in Minutes Repeaters? Bulgari uses very refined regulator system, which verifies inertia moment with only spring. And Seiko uses precise air re

I'll try to explain the difarences later. Please wait for a while... HIROTA

Covering lacquer has been thought to be better to have flatter surface. But Patek try to give relatively rough surface (looks sand blasted) on covering lacquer. The dial seems glossy if you see it squarely. But from an angle, you will notice that the surface is changed to matte . Maybe to improve vi

Again, I am very sorry MTF-san. I did not give detailed explanation in that seminar and I apologize to confuse you all. Now I try to explain about electro plating and some additional process in dial making… I hope do it well…. Now many dial have same making process. The first metal blank is cut as a

MTF-san, sorry for that. And thank you for your great article on Chronos Japan. HIROTA

I'll describe later... HIROTA This message has been edited by KIH on 2011-10-04 21:11:37

I try to add some additional information with my poor English. I hope you’ll understand and enjoy. Though I’m not a Patek admire and sometimes critical to their productions (have written in Chronos Japan), still Patek makes excellent watches and furthermore, quality is improving year by

The dial is covered with cellulose lacquer, I heard. Maybe it's the most difficult and important point in your restoration. Now even Patek and famous dial restorer Causemann cannot choose that. HIROTA