Seiko Lift Angles

[Blacklab]

Christmas has come early, just received a brand new Timegrapher 1900 (cause I've been a good boy and have only used naughty words 99 times a day instead of the usual 200+). Have been looking for lift angles of various Seiko movements but the links to lists have dried up, any one out there have these?

[Geo]

Oh you lucky man, you must have been very good this year! I look forward to hearing how you get on. :-)

[clockboy]

Hope  this helps.

 

LiftAnglesandBeats 1.pdf

 

 

[Blacklab]

Thanks for that Clockboy very useful, unfortunately no Seikos.

[bobm12]

Hi Roger, depending on the movement it is usually listed in the service data. Most of the time you are good with 52 degrees but sometimes it is 53.

[clockboy]

Sorry Blacklab wrong one try this one.

 

watch lift angles 2.pdf

LiftAnglesandBeats 1.pdf

Edited December 17, 2014 by clockboy

[Blacklab]

Thanks for the info Bob & extra thanks to Clockboy for one very useful list.

[rustycolt]

I just learned what a lift angle is. Thanks fellas! One more drop of knowledge into the old bucket  :)

 

Dear Santa,

I'd like a timing machine too please.

I'm leaving steak and lobster out for you this year, what would you like on your baked potato?

[Geo]

 

Dear Santa,

I'd like a timing machine too please.

I'm leaving steak and lobster out for you this year, what would you like on your baked potato?

Coronation turkey!

[svorkoetter]

I believe the run-of-the-mill Seiko movements such as the NH35, etc. are 54.5 degrees. Note also that a watchmaker friend tells me the Seikos have very low amplitude. 220 to 240 is not uncommon.

[ro63rto]

Thanks for the info Bob & extra thanks to Clockboy for one very useful list.

Some seikos in this list.

www.lepsi.ch/lift-angle/

Nice kit they sell too. No affiliation though.

Few more here among other makes.

hiro.alliancehorlogere.com/en/Under_the_Loupe/Calibres_by_Make

Edited December 24, 2014 by ro63rto

[Blacklab]

Thanks Rob, very useful info.

[timeshed]

The PDFs from this thread above are no longer available. Try:
- https://myretrowatches.co.uk/lift-angles
- https://watchmakingtools.com/watchmaking-resources/watch-movement-lift-angles/#Watch-Lift-Angles

Also, you can look up Seiko movements here and this reference sometimes has lift angles and technical sheets listed:
- https://mizeni.com/movements

It's not a complete list, and I have a hard time finding Lift Angles for some of my vintage Seiko's, so I will add a few more JIC.

- Lord Marvel 5740-8000 (5740C) : 53°
- King Seiko 5625-7110 (5625A,B) :  56°
- Seiko 6602-7040 (6602B) : 52°
- Lord matic 5606-7190 : 56°
- Grand Seiko 4522-7010 : 52°

Also, understand that if you do watch repair and can't find a lift angle, you can measure this yourself, here is a great doc and video that explains the concept:
- https://adventuresinamateurwatchfettling.com/2023/09/23/lift-angle-seiko-business-a-8346a-and-bell-matic-4006a

 

Edited January 23, 2024 by timeshed