Seiko Prospex Spring Drive GMT

BrandSeiko
ModelSBDB017
Year2017
CaliberSeiko 5R66
DetailsSize 45/15/22 (w/h/lug) 
Org. box and papers
Titanium
Service at Seiko DE via Poul Halse oct 22
– GMT function malfunctioned
Links
Watch movement on Youtube
About Seiko Spring Drive
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Spring Drive visualized

Looks simple… not so 😉

416 parts, 50 jewels, 140 oil points and 5 different lubricants. The 9R86 Seiko Spring Drive Chronograph movement.