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://www.youtube.com/watch?v=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 #watch #watchmaking Happy watchmaking!