In this video, we'll cover how to carry out a watch accuracy test with or without a timegrapher, then improve the accuracy of the watch through a process called “watch regulation”.
Timegrapher is an indispensable tool in watch repair for checking how well the movement of a watch is functioning. With it, we can determine the time deviation per day of a movement, which is used in watch regulation to adjust the accuracy of a watch.
Key content timestamps:
▶00:00 - Introduction
▶00:23 - Understanding the balance wheel
▶02:05 - How to use a timegrapher
▶02:55 - Watch regulation with a timegrapher
▶05:10 - Signs of magnetism, and higher accuracy standards (COSC)
▶05:47 - Regulation without a timegrapher
Watchmaking tools/equipment required for this video:
▶Timegrapher (https://shop.diywatch.club/collections/timing-watch-testing-machines/products/watch-testing-machine-2)
▶Case back opener
▶A pair of tweezers
Automatic movement shown in this video:
▶Seiko NH35 (https://shop.diywatch.club/collections/movements-1/products/seiko-nh35-movement)
▶Miyota 82S0 (https://shop.diywatch.club/collections/movements-1/products/miyota-82s0-silver-movement)
▶STP 6-15
DWC watch shown in this video: DWC-D01 with Seiko NH35 with D02 dial upgrade and bezel change: (https://shop.diywatch.club/collections/frontpage/dwc-dxx#MainContent)
Lift angle of common mechanical movements:
▶Seiko NH35: 53°
▶Miyota 8215: 49°
▶Miyota 9015: 51°
▶ETA 2824/SW 200: 50°
▶STP 6-15: 52°
Related video:
How to Demagnetize a Watch (Comparing 3 types of demagnetizers)
(https://youtu.be/DBxeIRnXyXQ)
Related article:
Guide on watch regulation with beat error correction (https://diywatch.club/en/blog/how-to-regulate-a-watch-using-a-timegrapher)
Join us to explore the possibilities of at-home watchmaking! We are working on everything from assembling/modding watches, regulating movements, and even bluing your own steel watch hands at home!
▶At-home watchmaker's shop: https://shop.diywatch.club/
▶Instagram (@diywatchclub): https://www.instagram.com/diywatchclub/ (we have a weekly giveaway)
▶Facebook: https://www.facebook.com/diywatchclub
Photo credit:
- Jsand4871, CC BY-SA 4.0, via Wikimedia Commons, https://commons.wikimedia.org/wiki/File:Blancpain_1.jpg
- Carlfbucherer, CC BY-SA 4.0, via Wikimedia Commons, https://commons.wikimedia.org/wiki/File:CFB_A1000.jpg
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Happy watchmaking!