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Seiko automatic movement 6R20. This high grade caliber is designed to place the Seiko firmly in the high quality mechanical market. The 6R20 movement is made of parts, all of which except rubies, are produced and assembled by Seiko Instruments Inc. The movement is exquisitely finished with an engraved rotor, polished edges to the bridges and hairline shading on the main surfaces. The high beat (28,800) movement delivers accuracy of -15~+25 seconds a day and the Spron 510* mainspring generates a power reserve of more than 45 hours.

* Spron 510 is a high-elastic material developed by Seiko Instruments Inc., and its registered trademark.

Caliber Specification (Caliber 6R20)

  • Hour, minute and second hands
  • Day and date hands
  • Power reserve indicator
  • 28,800 beats/hour
  • 29 jewels
  • 208 parts
  • Hand winding capability
  • Engraved rotor

Caliber Specification (Caliber 6R15)

  • Hour, minute and second hands with calendar
  • 23 jewels
  • 168 parts
  • Hand winding capability
  • Engraved rotor

Where to buy your SEIKO

There are a limited number of sites that SEIKO has authorized to offer SEIKO watches for sale on the Internet. There are also many unauthorized sites, and it is important to you to know the difference.
All Authorized Sites display this mark :

This is an authorized SEIKO Internet Site.
We offer you the same high quality service on our website as we offer at our retail premises.

Naturally, many unauthorized sites seek to look as if they are authorized, so we urge you to shop with care. Unauthorized sites routinely offer watches that are damaged, tampered with, second hand or even counterfeit, and in all such cases our Manufacturer's Warranty is invalid.
To be sure that you are getting a real, brand-new, undamaged SEIKO watch with an original and valid warranty, please contact our office in your country or consult the Authorized Dealer listing on our national websites.