Seiko Astron Radio Wave Control World Time Solar – Titanium – 8B63 OBDO

Seiko Astron GPS Radio Wave Control World Time Solar with reference 8B63 OBDO and blue dial with gold batons for each hour and window for date at 3 o’clock. 2 sub dials with the following functions: 24 GMT at 6 o’clock and calendar day at 9 o’clock. At 6 o’clock is engraved “Japan 8B63 – OBFO R 4. The watch comes with a black ceramic bezel. It is a titanium case with engraved in the back “Seiko - Radio Wave Control - World Time - Solar - Water Resistant 10 bar – Titanium – 8B63 OBDO A4 Made in Japan – 390645”. The watch has a quartz movement. Titanium bracelet with double Seiko clasp. The bracelet fits a 7.5 inches wrist.

History

It took only 40 years for the Kintaro Hattori firm, which was established in Tokyo in 1881, to become what it is known as throughout the world today as Seiko. 1892 saw the opening of the Seikosha plant, and in 1917 K. Hattori & Co. Ltd became a joint stock market. In 1924 it was given its internationally known name. From then on, progress was steady as the company developed in stages into the world’s number one clock producer with 350 million movements a year roll off the Seiko Epson production lines. As early as the 1930’s the company was displaying its wares in Tokyo’s fashionable Ginza shopping district. In 1964, Seiko was the official timekeeper of the Tokyo Olympics. In 1971, it introduces on of the world’s first automatic chronograph along with an early quartz wristwatch. From then on, electronics dominated time-measurement at Seiko. In 1981, Seiko tool over Jean Lasalle SA, a Geneva luxury brand that had gone bankrupt.

Technical details

Quartz movement

Measurements

Diameter excluding winding crown: 43mm


Length including lugs: 48mm