He came back with another Grand Seiko watch for restoration! 😵 4420-9000

Horology Biology has a Grand Seiko vintage watch ref 4420-9000 on the bench for some service restoration treatment. If you wish to support the channel and feel what I am providing is of value then I would love you as a member of the channel. You can join via the join button above or join me as a Patreon member.    / horologybiology   https://patreon.com/horologybiology?u... HB Merch available at https://horology-biology.creator-spri... Latest HB Watch Restoration videos    • This Grand Seiko vintage watch restoration...   Latest HB Watches and More videos    • Build a $2000 Vintage Watch Collection. Do...   Feel free to like the video and subscribe to my channel. If you do subscribe please leave a comment telling me you did and I will reply to each and every one of you. 00:00 Intro 00:14 The Strip down 10:49 Pegging the jewels 11:28 Mainspring removal 13:40 Dial & Hands buffing 14:18 Basket Prep 14:29 Ultrasonic cleaning of the case 14:35 Elma Super Automatic Deep cleaning 15:00 Crystal Restoration 16:25 The Rebuild 31:39 Hands Refitting 33:18 New crown gasket fitting 34:11 Casing up the watch 36:01 New case gasket fitting 37:12 Timergrapher 37:32 Finish and outro In between videos check out https://www.vintageenicar.com & https://www.horologybiology.com for more watches or follow me on Instagram:   / horology_biology   Also available on Facebook at   / horologybiology   Technical equipment: Cam 1: Panasonic Lumix G7 with a 14-140mm lens with a x2 magnifier lens Cam 2: Panasonic Lumix G7 with a 14-45mm Lecia lens Cam 3: Panasonic Lumix G8 with a 14-150mm Olympus lens with a x1 magnifier lens Intros: Lecia 7-14mm wide angle lens Rode Videomic Go / in video and voice over recordings Blue Yeti overhead microphone Boya lavalier microphone Macbook Pro 2021 Final Cut Pro / Editing Photopea.com / thumbnail creation #seikowatches #watchrestoration #vintagewatches #horologybiology