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SF240 day

Posted: February 4th, 2021, 8:26 am
by Yoda
Working on the third and last SF240 today, an alarm movement with narrow CdG stripes.

It's a unicorn in the sense that it has 19 jewels! The well known two extra for the train and two for the center wheel....

It doesn't really want to collaborate, so I will have to do something about the issue.

It is a movement from the crazy days on HF, Sjever and I wanted to create something special and I installed four more jewels.

Problem solved now, it was a simple hairspring job.

Re: SF240 day

Posted: February 4th, 2021, 9:18 am
by calvinktlim
Is it for sale?

Sent from my LYA-L29 using Tapatalk


Re: SF240 day

Posted: February 4th, 2021, 9:28 am
by Yoda
calvinktlim wrote: February 4th, 2021, 9:18 am Is it for sale?

Sent from my LYA-L29 using Tapatalk
I don't think so, it belongs to one of our members.

Re: SF240 day

Posted: February 4th, 2021, 10:21 am
by binbin
simple hairspring job :lol: You make me laugh.


Yoda wrote: February 4th, 2021, 8:26 am Working on the third and last SF240 today, an alarm movement with narrow CdG stripes.

It's a unicorn in the sense that it has 19 jewels! The well known two for the train and two for the center wheel....

It doesn't really want to collaborate, so I will have to do something about the issue.

It is a movement from the crazy days on HF, Sjever and I wanted to create something special and I installed four more jewels.

Problem solved now, it was a simple hairspring job.

Re: SF240 day

Posted: February 4th, 2021, 10:37 am
by Yoda
I am sure that it started out its life with an overcoil hairspring, but it was so bad from the beginning and a master watchmaker made it working pretty well. Still, the overcoil pressed a little and I gave up on the damn thing and reworked it to a flat hairspring and replaced the regulator arm to the longer one. Now it is alive and breathing freely.
SF240.jpg

Re: SF240 day

Posted: February 4th, 2021, 10:56 am
by Yoda
binbin wrote: February 4th, 2021, 10:21 am simple hairspring job :lol: You make me laugh.
Yoda wrote: February 4th, 2021, 8:26 am Working on the third and last SF240 today, an alarm movement with narrow CdG stripes.

It's a unicorn in the sense that it has 19 jewels! The well known two for the train and two for the center wheel....

It doesn't really want to collaborate, so I will have to do something about the issue.

It is a movement from the crazy days on HF, Sjever and I wanted to create something special and I installed four more jewels.

Problem solved now, it was a simple hairspring job.
LOLOL! Some of these things have for some odd reason become a specialty of mine.

Re: SF240 day

Posted: February 4th, 2021, 10:56 am
by straps68
Looks cool.

Re: SF240 day

Posted: February 4th, 2021, 11:27 am
by Yoda
I hope that I some day can work my way down through all these movements and build my own SF240 from NOS parts.

Re: SF240 day

Posted: February 4th, 2021, 11:40 am
by straps68
Yoda wrote: February 4th, 2021, 11:27 am I hope that I some day can work my way down through all these movements and build my own SF240 from NOS parts.
Fingers crossed :)