• SUPPORT
  • FAQs
  • Instruction
  • Customer Service Center
  • Caliber Operation See How It Works

Instruction (English)

The instruction in PDF format is available to provide you with information on the optimal use of your watch.

Locate the caliber code by referring to the markings on the case back of your watch.

  • Step 1. Check the caliber code of your watch on the case back
  • Step 2. Select your language
  • Step 3. Click the first digit of the caliber code and find yours

Interactive Caliber Operation is also available. Click the banner on the left.

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.