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Seiko Caliber 4S77

Technical information

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Watches with the 4S77 movement

4S77-0010
4S77-0020
4S77-00A0
4S77-00B0
4S77-00C0
4S77-00D0
4S77-00E0
4S77-0A20
4S77-0A30
4S77-0A40
4S77-0A50

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.

Andrea Secco

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This website is the work of a watch enthusiast and a collector of Seiko and Grand Seiko timepieces, and it is not affiliated with Seiko in any way.

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