Skip to content

Home
Grand Seiko
Diver’s
Guides
Archive

Seiko S521-4010 Watch Guide

The Seiko S521-4010 is a watch model based on the S521 movement.

Parts List

86573660

crystal gasket

Other models with the same 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.

Français
Japanese
English
Italiano
Español

Recent Posts

The History of Seiko Wristwatches
History of the Seiko 5 Sports
Seiko 5 Sports: The Kamen Rider Reborn
Seiko Movements List
The real history of the Seiko Laurel

the_seiko_guy

This beautiful blue watch is a limited edition of

The vintage Grand Seiko 5641-7000 is currently one

New Seiko 5 Sports ref. SBSA253 #seiko5sports #se

Seiko Liner 18k solid gold vintage dress watch.

The History of Seiko Wristwatches https://www.thes

A box full of strange little objects from the past

History of the Seiko 5 Sports https://www.theseiko

The 1968 Seiko 5 Sports summer bag!

The Seiko 5 Sports 5126-8090 “Kamen Rider” fir

I love the new models presented by Seiko. There’

Seiko has unveiled the new 5 Sports “Kamen Rider

The reissues of the Seiko Laurel from 2000 and 202

Vintage Grand Seiko 61GS Hi-Beat Automatic wristwa

My first and last diving watches: Seiko Turtle Sav

Seiko Marvel “Sailing Ship” ref. 14045 from Au

Load More... Follow on Instagram

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.

© 2024 The Seiko Guy - Privacy Policy

Scroll back to top