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Seiko Caliber 5Y91

Technical information

watch movement technical information

watch movement technical information

watch movement technical information

watch movement technical information

watch movement technical information

watch movement technical information

Watches with the 5Y91 movement

About “The Seiko Guy”

Hey, nice to see you here!
My name is Andrea Secco, I’m a watch enthusiast and a Seiko collector.
I hope this website will be useful to all of you who share this passion.

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