Skip to content

Home
Grand Seiko
Diver’s
Guides
Archive

Seiko Y715-400A Watch Guide

The Seiko Y715-400A is a watch model based on the Y715 movement.

Parts List

86560970

case back 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.

English
Italiano
Español
Français
Japanese

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

The journey of a watch enthusiast into the past, present and future of Seiko. 🇮🇹🇯🇵

First generation Lord Marvel 14056. #seikowatch #

Seiko 6458-6000 Yamaha #seikodiver #diverwatch #s

Seiko New 10B, Super and Unique. #seikocollector

One more Seiko New 10B small seconds. #seikowatch

Seiko New 10B small seconds from 1955. #seiko #vi

Seiko Quartz-Astron 35SQ, the world’s first quar

Seikosha Precision caliber New 10A Center Second.

1953, The Geological Society of Japan. Seiko Calen

Seiko automatic watches Gyro Marvel, Seikomatic an

Seiko Lord Marvel 23 jewels and Seiko Marvel 21 je

Seiko Marvel 21 Jewels introduced in late 1958, so

Seiko Laurel Dust Proof NO.CEM-4. No case code and

Seiko Sportsman Dolphin, Water Protected J13035.

The Seiko Pikachu ⚡️ #seiko #tokyo #japan #gi

Seiko 38SQW 010 and 014 with their original bracel

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.

© 2025 The Seiko Guy - Privacy Policy

Scroll back to top