Since the end of last year ...

I have been making a new jumping hour watch which was ordered from NY at the end of 2016. 

This is based on the model IL020 and arranged to new designed case. It will be more classical and simpler.

Steel and brass dial parts decorated with Perlage.

Cutting the shaft for minute hand. Diameter of thinnest part is 1.10mm.

Assembling, and completed !

This watch-making project will be finished at last. All parts has been produced.
FHF98 hand-winding movement is overhauled.

Assemble jumping-hour module parts.

Attentively adjust tension of jumper springs. In too weak or too strong, it does not work correctly.

Inner holder with movement is fixed with two screws.

Two clear plate (only 0.5mm thick acrylic plate) are screwed to the inner holder.

They don't disappear pretty perlage pattern.

Only the side of the lug is made with mat finish and the other surface is hairlined. They will be fixed to the main case with M1.6 micro screws (their head is cut and chamfered).

All parts are assembled !

Case parts making Pt.8 / Perlage

Perlage is one of the most popular decoration for watch movement. It is a very simple circular pattern by grinding. I applied it on the brass inner holder and on visible part of the base plate of movement.