- A RARE GOLD CHRONOGRAPH WRISTWATCH WITH REGISTER AND PULSATIONS
CIRCA 1930 REF 2811 ANTI-MAGNETIC
This model, Ref. 2811, was first launched around 1930. Its simple design competed very well with similar chronographs from other firms, such as Patek Philippe and Longines. By the 1940s, the design would change and the lozenge pushers would be replaced with rectangular ones.
Examples such as the present, with pulsations scales, are very unusual.
For a similar example, see Gobbi, P. I Cronografi Rolex - La Leggenda, pp. 94-97.