Brand: Rado
Model: Diastar 40th Anniversary Chronometer
Ref.: 636.0557.3
Issued: 2002
Case: Tungsten-Carbide with Stainless steel screw-back & sapphire window
Crystal: Sapphire with longitudinal facets
Bracelet: Stainless steel with titanium butterfly hinge; ref. 02980
Movement:  ETA 2836-2, gilt, numbered & chronometer certified

In 2002 Rado celebrated the 40th anniversary of the introduction of the Diastar series, the original scratch-proof watch with case components made of tungsten-carbide. Among several re-issue models made at the time, Rado produced 600 Diastar chronometers with white dial, blue hands & markers, and the designation 40 on the dial to indicate the anniversary. The case features a display-back—something not often seen on Rado automatics before this period—which is engraved with the dates 1962-2002 and the individual series number of the watch. The numbered chronometer movement, ETA Cal. 2836-2, is gold-plated and decorated with perlage and côtes de Genève.

The original bracelet with signed Rado clasp is present on this watch. A period Rado box is present, but it is believed not to be the correct one.

Photos: Click for larger images

Photo by the author Photo by the author Photo by the author Rado Chronometer 40 Rado Chronometer 40 dial detail  

 Diastar Chronometer Ref. 625.0557.3 Case back Signed & numbered chronometer movement - ETA Cal 2836-2

This watch has been sold.

Text and images © C. Bradley Jacobs,