Skip to content
The Seiko Guy
  • Home
  • Grand Seiko
    • Vintage Grand Seiko
    • Grand Seiko Spring Drive
    • Grand Seiko Movements
  • Diver’s
    • Seiko 62MAS
    • Seiko Turtle
    • Seiko SKX
    • Seiko Monster
    • Seiko Sumo
    • Seiko Samurai
    • Seiko Shogun
    • Seiko Save The Ocean
    • Zimbe
  • Guides
    • How to buy Seiko watches from Japan
    • Laurel
    • Quartz-Astron 35SQ
    • Seiko Cocktail Time
  • Archive
    • Catalogs
    • Seiko News/Sales
    • Press Releases

Seiko 7C21-0AA0 Watch Guide

The Seiko 7C21-0AA0 is a watch model based on the 7C21 movement.

Other models with the same movement

7C21-0A10
7C21-0A11
7C21-0A12
7C21-0A20
7C21-0A21
7C21-0A22
7C21-HAA0
7C21-HAB0
7C21-HAD0

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

  • EnglishEnglish
  • ItalianoItaliano
  • EspañolEspañol
  • FrançaisFrançais
  • JapaneseJapanese

Recent Posts

  • Seiko WatchesThe History of Seiko Wristwatches
  • Seiko Five SportsHistory of the Seiko 5 Sports
  • Seiko 5 Sports: The Kamen Rider Reborn
  • SeikoSeiko Movements List
  • Seiko LaurelThe real history of the Seiko Laurel
The Seiko Guy

the_seiko_guy

The journey of a watch enthusiast into the past, present and future of Seiko. 🇮🇹🇯🇵
Seiko Marvel and Crown. #seikowatches #vintagesei Seiko Marvel and Crown. #seikowatches #vintageseiko #seikomarvel #seikocrown #seikocollector #seiko
First generation Lord Marvel 14056. #seikowatch # First generation Lord Marvel 14056. #seikowatch #lordmarvel #seiko #vintageseiko #grandseiko #seikosha
Seiko 6458-6000 Yamaha #seikodiver #diverwatch #s Seiko 6458-6000 Yamaha #seikodiver #diverwatch #seiko #seiko6458 #yamaha #seikofam #seikoslimturtle
Seiko New 10B, Super and Unique. #seikocollector Seiko New 10B, Super and Unique. #seikocollector #seikowatches #vintageseiko #seikosuper #seiko #watches #seikounique
One more Seiko New 10B small seconds. #seikowatch One more Seiko New 10B small seconds. #seikowatches #watches #vintageseiko #seikofam #seikoholic #seikosha
Seiko New 10B small seconds from 1955. #seiko #vi Seiko New 10B small seconds from 1955. #seiko #vintagewatches #seikocollector #seikowatch #vintageseiko
Seiko Quartz-Astron 35SQ, the world’s first quar Seiko Quartz-Astron 35SQ, the world’s first quartz wristwatch. #seikowatch #quartzastron35sq #seiko #watchesofinstagram #grandseiko #seikosha #seikoaddict #watchcollector
Seikosha Precision caliber New 10A Center Second. Seikosha Precision caliber New 10A Center Second. #seiko #seikowatch #vintageseiko #watches #seikofam #seikosha #seikocollector
1953, The Geological Society of Japan. Seiko Calen 1953, The Geological Society of Japan. Seiko Calendar Watch. #seiko #seikosha #seikowatch #watches #vintageseiko #japan #watchesofinstagram
Seiko automatic watches Gyro Marvel, Seikomatic an Seiko automatic watches Gyro Marvel, Seikomatic and Sportsmatic. #seikowatches #seiko #vintageseiko #watches #automaticwatch #seikomatic #sportsmatic
Seiko Lord Marvel 23 jewels and Seiko Marvel 21 je Seiko Lord Marvel 23 jewels and Seiko Marvel 21 jewels watch movements. #seikowatches #watchmovement #mechanichalwatch #seikomarvel #lordmarvel #luxurywatch #grandseiko #watches #seiko
Seiko Marvel 21 Jewels introduced in late 1958, so Seiko Marvel 21 Jewels introduced in late 1958, soon after the first Lord Marvel. #seikowatch #vintageseiko #seikomarvel #lordmarvel #watches #watchesofinstagram #watchcollector
Seiko Laurel Dust Proof NO.CEM-4. No case code and Seiko Laurel Dust Proof NO.CEM-4. No case code and no serial number. #seiko #vintageseiko #watches #seikowatch #seikocollector #seikofam
Seiko Sportsman Dolphin, Water Protected J13035. Seiko Sportsman Dolphin, Water Protected J13035. #seiko #vintageseiko #seikowatch #watches #seikofam
The Seiko Pikachu ⚡️ #seiko #tokyo #japan #gi The Seiko Pikachu ⚡️ #seiko #tokyo #japan #giappotour #giorgiovanni #seikowatch #seiko5sports #pikachu #pokemon #watches
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