Friday, August 29, 2025

It’s getting nippy

 Summer might be making its way out the door here in Le Locle. But the students here are still on fire with their work. 

Starting off with Craig, having finished off his engraving and surface finishing for the polishing tripod.

Looking clean
Moving on to Garry, he’s reaching the final steps of his watch case. Here he used the 3D printer to make a 45 degree polishing jig for consistent finishing.

Jig at work

Bernd finished his last mandatory tool, the pallet fork platform. This tool is used on a heating plate in order to hold down a pallet fork while its pallet jewels get replaced. The tool was made from materials found in the school’s scrap metal box and from an old main spring. The spring was blued after reshaping it. Recycling at its best!


Henrik has started to teach static poising to the senior students. Two of them are quickly approaching their finals exam!


That ladies and gentlemen is the face of concentration 

Henrik met with a student alumni who is back in Switzerland and now working in Audermars Piguet!


New student from Korea! Jaewon

That’s it’s for now, until next time!

Friday, August 22, 2025

Hard at Work

   Week 34

Louis Lu and Craig working on the lathe


STUDENT HIGHLIGHTS

Workshop A

Students:
    Art, Bernd, Cesar, Joan, Louis Lu, Mun, Nine

     This week Bernd modified a Käfer J12 pocket thickness gauge for the use with a watchmaker’s lathe. He replaced its flat contact points with two hardened and blued steel blades. He also finished his second to the last mandatory tool, the brass anvil. One more to go!
The Brass Anvil, an exercise in precision-milling different shapes

 
Joan worked on one of his mandatory tools: the v-slotted poising plate.

Workshop B

Students:
    Christiaan, Craig, Gary, Philippe, Sense
    

 
Christiaan, Gary, and Philippe continued their machining education, learning how to use the milling attachment on the lathe. Gary quickly put this skill to use by machining some new screws for one of the other workshop machines.
 
Milling the slot in the screw

Philippe passed his first exam with two expertly-filed brass blocks.
Perfect fit, made by hand
  
Craig and Sense joined Art and Nine in learning how to properly assemble and disassemble a balance wheel. They practiced removing a broken balance staff, tightening a roller table, and riveting the balance staff to the balance wheel.

Art making sure the staking tool is centered

Extracting the roller table and safety roller from the balance staff

 
Sense riveting a balance wheel together with the staking set

Craig also reached a significant milestone in the construction of his watch: machining out and assembling all of the bridges and plates. All made from scratch and of his own design. Well done!
Plates fit together and awaiting finish

Thank you for reading!

Watchmaker memes, courtesy of Art

Hope to see you again next week

Friday, August 15, 2025

We’re back baby

 Everyone is back from the summer break. Starting strong with an eventful week. 

Craig for the past few weeks in the workshop has been working on a complete restoration of his late mother’s watch. This included a full diagnostics and cleaning of a quarts movement, a new crystal, complete disassembly and cleaning of the case, and sanding down the old worn plating, polishing the metal to a pristine finish, and re-plating in gold. All that remains is the clasp, which is made out of a stainless steel alloy that is resisting electroplating.


Meanwhile Gary has been working on a case he designed with pen and paper. He first machined it from brass then moved on to steel. The finished product shall be coming along soon.

Square is the new circle

Chris is getting up to some stuff too. This week his laser machine arrived! He’s been playing with it these last few days and working in a dial.

Laser cutting





Finished product 

That’s it for this week, until next time!