In my last year at the Swedish wostep certified watchmaking school I spent one of the training periods at
Lang & Heyne the independent watchmaker based in Dresden near Glashütte, Germany.
Lang & Heyne are specialized in making small series of high end watches with typical German handcraft and tradition stemming back from the 19th century. inspired by the classic Lange & Söhne and similar pocket watches.
It was a great experience to spend time with them and I feel honored to have been given the opportunity to learn from such masters of watchmaking.
Mr Marco Lang, one of the two founders of the brand, was very humble and helpful during my time there and I was given the chance to learn about the whole process of making the watches. From the creative process in computerized CAD-programs to the production of the raw parts and the finishing. It's not an easy thing to get the finishing right and the Germans were very strict, so only perfect is ok. I can tell you that I got a little frustrated more than one time in the process. But without training you will never reach a perfect result in the end and I am the type that will continue training until I get it flawless. First I will show some pictures of the parts I did the finishing on and after that I will show some of the extraordinary watches they make at Lang & Heyne.
Here are the screws that I had to finish. There were 30 of them at the beginning and not everyone was usable in the end I can tell. ;) I did the bevelling on the outer edges, bevells on the slot. Polished the thread, head, and the tip of the screw.
Bevelling in the lathe. The important thing here is to make sure that the edge is perfectly uniform, otherwise the polished part of the head will not be perfectly circular.
Polishing the crown wheel. Here a special polishing paste is used and the metal piece on the right is turned in the opposite direction to the wheel to get the special "solar finishing". Often used in German watchmaking.
Here is the pallet bridge. First sandblasting, after that it had to be polished with a German silver brush and in the next step I made the special Lang & Heyne silvering procedure. I had to do bevelling on all edges and holes, even the ones that was not visible. In the end it was gold plated and fitted with a jewel in a gold chaton and with the blue screws of the type I did before.
The silvering process. It was made with a bristle brush and a mixture of salt and silver powder. The silver is rubbed in to the piece to make the frosted finishing really shine.
Silvered!
Here is the adjuster fitted into soft wood prepared for polishing the inner bevel.
Polishing the inner bevel of the adjuster.
Almost finished.
Swan neck fine adjuster before and after finishing.
To do the polishing a tin plate is used, with different polishing paste on it. From coarse to very fine.
Ready!
Black polished.
A piece of soft wood to hold it with while polishing.
Polished.
Swan neck and click spring, black polished.
Shiny.
Now I will show you some of the watches and movements.
The Model Moritz Von Sachsen. This watch has the following complications:
Moonphase
Date
Day of the week
Month
Day-/night indication
Declination Angle, if you wonder what it is, check this link
http://en.wikipedia.org/wiki/Declination
Hand engraved and frosted bridges, screwed gold chatons.
Albert Von Sachsen. One of the nicest choronographs made today (IMO) single pusher, handmade hands, enamel dial. Beautifull movement.
Caliber IV chronograph movement.
Caliber V with one second remontoir mechanism (constant force).