Serial Number: The serial numbers on modern Seiko models are comprised of 6 digits. The first digit indicates the year, the following character the month and the remaining 4 digits a unique production number. The month is listed as 1-9 for January to September, then 0 for October, N for November and D for December.

How do you read the back of a Seiko watch?

The format for dating it via the serial number is as follows: The first digit in the number will indicate the last digit of the year the watch as manufactured. The second digit indicates the month, and the last 4 digits the production number, which is unique to the watch.

Are Seiko watches made in Japan?

Made in Japan So, while the majority of Seiko watches are assembled in the country, many of the parts used to make them have been manufactured in other parts of Asia. However, for their high-end line, Grand Seiko, all timepieces are manufactured in Northern Japan indefinitely and fit the tag given.

Are Seiko 5 watches made in Japan?

Made in Japan So, while the majority of Seiko watches are assembled in the country, many of the parts used to make them have been manufactured in other parts of Asia. However, for their high-end line, Grand Seiko, all timepieces are manufactured in Northern Japan indefinitely and fit the tag given.

What do you call the glass on a watch?

Crystal. The clear portion of the watch face that protects the dial, hands, etc. The crystal can be made of plastic, glass or synthetic sapphire. The crystal of a watch is like the window of a house - protects the interior from the elements while still allowing you to see in.

What is the rotating dial on a watch for?

Rotating the bezel is done to set a particular time of reference. A less common approach is to adjust the bezel so that the 12 oclock pip lines up with the minute hand at the time the dive commences. The diver will then have to remember that they have to ascend when 19 minutes have elapsed.