ref.3514
White, Blue dial

A very fine and rare 18k white gold self-winding wristwatch with date display, ref. 3514, and blue dial.
The case is non-polished.
Blue dials are rarely seen on ref. 3445 etc., but most have a Sigma mark (from 1972 onwards) and many of these were replaced in later years, so examples that appear to be original like this one are extremely rare.
Comes with an archives and the original white gold buckle.