Rolex 1210

History: This calibre dates from the mid 1950s. The calibre 1210 was one of the many derivations of the old Hunter 10½ movement, which dated back to the 1920s. The 1210 was one of the last of these manual wind movements, unlike the original 10½ movement it features shock protection on the balance & escape pivots. These movements usually feature 17 jewels, and were used in the 3038 series of 'Pre-Cellini' watches.

The 1210 is the sister to the 1215, with the primary difference being that the 1215 has a date feature where the 1210 does not.

Manufacturer: Rolex SA (/ˈroʊlɛks/) is a Swiss luxury watchmaker. The company and its subsidiary Montres Tudor SA design, manufacture, distribute and service wristwatches sold under the Rolex and Tudor brands. Founded by Hans Wilsdorf and Alfred Davis in London, England in 1905 as Wilsdorf and Davis, Rolex moved its base of operations to Geneva, Switzerland in 1919. Forbes ranked Rolex 64th on its 2016 list of the world's most powerful global brands.[Rolex is the largest single high end watch brand. The company is owned by the Hans Wilsdorf Foundation, a private family trust.

Alfred Davis and his brother-in-law Hans Wilsdorf founded Wilsdorf and Davis, the company that would eventually become Rolex SA, in London, England in 1905. Wilsdorf and Davis' main commercial activity at the time involved importing Hermann Aegler's Swiss movements to England and placing them in high-quality watch cases made by Dennison and others. These early wristwatches were sold to jewellers, who then put their own names on the dial. The earliest watches from Wilsdorf and Davis were usually hallmarked "W&D" inside the caseback.

From Wikipedia