Oris 660-7531-4061 with day date calendar and caliber Oris 660 with 25 jewels

Automatic Oris 660-7531-4061 with day date calendar and caliber Oris 660 with 25 jewels

Stainless steel automatic Oris watch with a white round dial, stainless steel Arabic numerals for the 1-11 hours. At 12 o’ clock comes the Day Window and at 6 o’ clock comes the date window. It is a “Swiss Made” model. The hands are silver tone with “Stick” design and luminous and the minute markers are luminous as well. The watch has a screwed Oris crown. It is an exhibition back case with engraved around “ Water Resistant 30M – Oris Swiss 7531- All Stainless Steel – Front Sapphire Crystal-22 18356”. The watch has an automatic movement with caliber Oris 660 and 25 jewels. The watch has a Oris genuine-leather strap with a stainless steel double clasp Oris buckle.

History

The company Oris started in 1902 when the Lohner and Nagelin company started producing watches in the town of Holstein. It closed down two years later. Then came Paul Cattin and Georges Christian who succeeded in producing inexpensive pinpallet movements which nevertheless met chronometer standards through careful construction and manufacture. In 1952 an automatic movement with a winding rotor and power reserve indication gained notoriety. In 1966, Oris introduced the first automatic lever movement, the 645 caliber. A wrist-chronograph was launched in 1970 in cooperation with Dubois-Depraz. From 1919 to 1987, Oris has produced almost 97 million watches.

Technical details

Automatic movement with Caliber Oris 660 with 25 jewels, 28,800 A/h.

Measurements

Diameter excluding winding crown: 37.50mm


Length including lugs: 43mm