Friday, May 18, 2018


This week we're moving to work on the hairspring and keep poising the balance.
After the balance staff has been riveted to the balance, we need to make static poising to make the balance balanced.

Meanwhile, starting the new course of hairspring, from removing the stud and collet on old hairsprings, then put them back together with new brass pins as a pre-exercice before working on new material.

Now the thing got so delicate, so we really need to hold our breath when adjusting it.

lots of hairsprings to work on!
Stan is poising the balance.

Now we're working more under the microscope.

Cheking the pivot before poising.

Before removing the stud.


The collet for holding the hairspring.

Also remove it.

Friday, May 11, 2018

Balance Course Start

We start balance course first with disassemble it by removing hairspring, punching out double roller, turning, filing and punching out staff. Also deal with different type of shock absorber.

To remind our reader again, we have our Instagram account now - Khwcc2017 -. Please feel free to follow us. :)

Tools you need to deal with balance.

Check how to properly centering the staking set.

Static poising, checking the setup..

Practicing different technique of removing balance staff.

Turn off balance staff before punching it out.

Punching out balance staff.

Eero was in school last week, he was turning the roller seat pivots and burninshing pivots of his balance staff, almost done now!

Friday, May 4, 2018

Fun week

After the escapement exam  this week we are free to do some restoration and finishing. Yi Ting did the real Geneve stripe on her private tool. The geneve stripe looks so fine and sharp, and that is the difficulty for making the geneve stripe. It cant be cut too deep to damage the bevel. CJ restored his own watch and did the high grade finishing for it. The bridges look much better after CJ did the frosting, chamfering, and beveling. It took him some practices to achieve this great quality. Stan was trying to polish the broken jewel. The pallet jewel was broken at the cornor and it had to be polished away. Stan used the tripod and tin plate with diamond paste to polish the jewel to flat again. It looks the new jewel after polishing. Btw we join the instagram(KHWCC2017) this week feel free to follow us. We will post our life of watchmaking on it for sharing.

Nice tool with Geneve stripe

Close-up naked.

 Nice finishing
 Broken jewel
Flat again

Friday, April 20, 2018

Trial Exam Week

Next Friday will be the Escapement Exam, before that we'll have four trials to make us more familiar with the whole process of servicing the Swiss lever escapement. During our four hour exam we have to deal with all the divisions and enshakes from balance to escape wheel. We also have to adjust the pallet jewel penetrations and make sure they are at the right depth to ensure the escapement achieves function, safety and optimum performance. There are a lot of detail we need to take care of during the exam. Before the real one coming we just have to keep practicing, that's the best way to learn.

Besides the trial exam we keep working on our own projects.

CJ modifing his tweezer to hold pallet fork in a better way.
Yi Ting's productive way of cooking away shellac. :)
This is not for BBQ, Yi Ting is trying to find the heater which could reach the highest temperature.

CJ try to make Geneva Stripes.

He got a better result with using white 3M paper (hard) (Left).
Pattern on the right is using green 3M paper (soft).
Creating Geneva Stripes without damaging bevel.
CJ finished the ratchet wheel for his restoration project with sunray finish. 

Friday, April 13, 2018

Trying out finishing with the Aciera F1

This week Henrik modified Acira F1 , so we can try to make Geneva Stripe decoration. Besides we also had a chance to look at Geneva Stripe in old pocket watches (from Henrik's personal colletion) and compare with the modern one. We will keep you updated on the result in future posts.
Sif's first trial of Geneva Stripe

Sif refresh her escapement meter bought from fleat market.

Friday, April 6, 2018

Spring is coming!

Before the Easter we visited Baselworld, even though the exhibition size was smaller this year, we still enjoyed it very much. We met some nice independent watchmakers there, and they are willing to share their own experience to us which is really helpful. We also saw lots of high quality finishing watches.
After the Easter break, there is a coming exam soon. After recharging ourselves during the break, we now have to push ourselves to pass the coming exam. We only have less than one year in the school, and we have to utilize the left time properly to learn as much as we could.
BTW, the spring is coming,its sunny, hope everyone enjoy it. 
Last week of Felix in school, we give him a welfare party and wish him all the best in the future.

Sif is bonding pallet jewel with shellac.

Sometimes we make or modify our tools during daily work. Micromechanics really helped a lot.

CJ adjusting the depth of pallet jewel on a heated escapemeter.

Stan checking the horn and guard pin clearance between pallet fork and balance.

This is what Henrik needs for hiking.

Friday, March 23, 2018

Basel world week

Basel world 2018 launched this week, even though it is only half size compare with previous year we are still looking forward to join the event. Next week is Easter, we try to wrap up our current work to a certain stage so we can enjoy the coming spring break. 

CJ making rachet wheel for his own restoration project.

Before making a reall one, it is always good to try making a brass prototype.

Sif fine tune flatness of the wheel.
Felix adjust pallet jewel.
How to properly apply epilam on escapement.

What is Yi-ting looking at?

This is what we are looking at for the whole week, to precsely adjust division between balance, pallet fork, and escapement. Picture shows the division between guard pin and safety roller.

Eero finished the winding stem for his own restoration project.