|Model:||Speed-Timer – 5 Sports|
|Size - diameter excluding winding crown:||41.5mm|
|Size - length including lugs:||46mm|
1971’s black round dial with white baton for each hour. The watch has a white sub dial at 6 o’clock for the seconds. There is an inner rotative bezel marked up to 55. There is also an outside coke tachymeter graduated up to 250. The day (Japanese) and date window are at 3 o’clock. The hands are white with baton style and the chronograph hand is orange. Luminous are just perfect. At 6 o’clock you have on the dial “Japan 6139 – 6050 T”. It is a screw back case with engraved outside “Seiko – Water Resistant – 148207 – Japan – Stainless Steel – 6139 – 6032”. It is an automatic movement with caliber 6139 and 21 jewels. The watch comes with the original stainless steel strap and clasp folder Seiko – 5 Sports. It is a full set including box, extra link, original invoice and manual of operations. Mint condition, real collectible set.
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.
Automatic chronograph with caliber 6139 with 21 jewels, 21,600 A/h and 45 hours of power reserve.
Diameter excluding winding crown: 41.5mm
Length including lugs: 46mm