Cc Bg 1920 1280
Lift Angle

Lift Angle

What is Lift Angle of a watch movement?

The number of degrees the balance wheel turns while making contact with the fork of the escapement. The movement’s lift angle is represented in degrees (for example: 52°).

It is necessary to know the lift angle when determining the accuracy and performance of a movement. Combined with the beat rate (BPH, VPH), you can find the balance amplitude on a timegrapher (aka watch timing machine).

While most lift angles are somewhere between 48-54 degrees, you may see some folks use a common lift angle number (52° is a generally assumed average and also the default lift angle on most timing machines) and say that it doesn’t matter or “it’s close enough”. That is not a helpful approach for getting an accurate picture of how well the watch is functioning, and if you’re looking to get more than the rate of timekeeping from your timing machine, then you will want to input the correct lift angle.

How to find Balance Lift Angle?

If you’re getting deeper into the watchmaking rabbit hole or starting to do your own watch repairs, you’ll eventually need to find the movement’s lift angle.

Caliber Corner makes an effort to list the known lift angle for each movement, but sometimes it is unconfirmed.

This video that explains what a balance lift angle is and the formula to figure it out.

Caliber Corner is the world's most popular resource for watch movement pics, specs, mods and DIY repairs. Be sure to check out the member's forum and follow @calibercorner on Twitter, Instagram and YouTube (NOT Facebook). Join our mission to spread movement awareness! Login/Sign-up

Community Reviews & Questions:

  • Keep comments respectful and follow our community guidelines.
  • Keep comments on the topic of Lift Angle

For off topic or general watch questions, post in the Caliber Corner Forum.

guest

0 Comments
Inline Feedbacks
View all comments
Seagull Caliber St19

Join our mission to spread movement awareness!

Members Online

  • admin keepthetime

Recent Forum Posts

Trending Comments

Hans Groenewegen
2

Orient Caliber F6922

I've had my Mako and Ray Orient watches with these calibers, I guess. Their performance…


admin
1

Sellita Movement Grades

Yes. The diameter and height will be the same. The main differences are the finishing,…


pamoh
1

Sellita Movement Grades

Can they be exchanged ie upgraded? Same dimensions?


1

Rolex Paraflex

ROLEX 3136


1

Raymond Weil Caliber RW4251

I have the watch on hand and can confirm the RW4251 is based on the…


Sponsors

0
Would love your thoughts, please comment.x
()
x