Fixing and Servicing a Vintage Seiko King Quartz 1977 Watch Cal.5855 Part I - Full Strip

This is a story about fixing and servicing the legendary vintage Seiko King Quartz watch Cal 5855-8010, that Seiko developed almost 50 years ago alone with it's lines of Grand, Lord and other quartz watches. The appearance of the quartz watches made life of producers of the mechanical watches very difficult, causing many manufactures to disappear.
The Part I of this video shows a process of finding the root cause of the defect and also a complete disassembling as a part of the quartz watch service.

Link to Part II:    • Fixing and Servicing a Vintage Seiko King ...  

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Below are the links to the equipment, tools and materials I use when working on the watches. These links are paid by Amazon Associate program and if you use them to make a purchase, as an Amazon Associate, I will earn from qualifying purchases and it will help to support the channel:

TOOLS:
Digital microscope for inspection and recording: https://amzn.to/3QzyQPi
Bergeon 9-piece Screwdrivers: https://amzn.to/3CMpRoe
Bergeon 55-710 Set of 4 Oilers: https://amzn.to/3GXoZPd
5 Dish Watch Oiler Set: https://amzn.to/3QFDewu
Screwdriver Sharpening Holder: https://amzn.to/3ZKBGWb
Sliding Nickel Handheld Pin Tong Vise: https://amzn.to/3ixo2EQ
2L Degas Sweep Ultrasonic Jewelry Cleaner: https://amzn.to/3CKYvis
Motorized Rotating Display Stand: https://amzn.to/3GDi11B
Stand with Double Non-Slip Clamping Pad: https://amzn.to/3X9IQ4i

VIDEO and AUDIO:
Main video recording photo camera #1, Canon EOS RP: https://amzn.to/3IMwr28
Main video recording photo camera #2, Sony 6400: https://amzn.to/3kdFzT9
Secondary video recording photo camera, Fujifilm FinePix SH10: https://amzn.to/3D7y1bh
EF-R2 EF to RF Adapter for Canon RP: https://amzn.to/3XJOPgn
Canon EF Lens to Sony E Mount T Smart Metabones Adapter: https://amzn.to/3W6hoD9
Canon EF 100mm f/2.8L IS USM Macro Lens: https://amzn.to/3Qy5RM1
Canon EF-S 60mm f/2.8 Macro USM Fixed Lens: https://amzn.to/3W9Kd1N
Rode VideoMicro Compact On-Camera Microphone: https://amzn.to/3kh7GAY
Blue Snowball USB Microphone: https://amzn.to/3CKR0b9

ACCESSORIES and MATERIALS:
Small Ultrasonic Task Jewelry Cleaning Basket: https://amzn.to/3XtCSuO
Ultrasonic Cleaner Parts Basket: https://amzn.to/3kcsGbX
Troop-Balas Laboratories One-Dip Watch Cleaner: https://amzn.to/3W8x0WZ
Testor's 1139TT 1/4 Oz Black Semi Gloss Enamel Paint: https://amzn.to/3ZBwUdd
Articulating Magic Friction Arm: https://amzn.to/3GGk0ls
SMALLRIG Super Clamp: https://amzn.to/3IFhGhs
J-B Weld 8276 KwikWeld Quick Setting Steel Reinforced Epoxy: https://amzn.to/3w1p670
Parts Storage Box: https://amzn.to/3X9NZt9
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3M Rugged Comfort Quick Latch Reusable Respirator: https://amzn.to/3X6a6k9
3M Respirator Cartridge 6006: https://amzn.to/3Xpmfk3
PolyWatch Plastic Watch Crystal Scratch Remover Polish Tool: https://amzn.to/3ixBWXJ
Lansky Ultra Fine Sharpening Hone: https://amzn.to/3Zwunku
The Watch Repairer's Manual: https://amzn.to/3WabpNP
WEN Drill Press Table: https://amzn.to/3QlbLSe
24V DC High Torsion Reversible Motor: https://amzn.to/48UGCMq