cosmograph

Rolex Cosmograph Daytona 6239 from 1961 to 1976

by John
February 28, 2019

Very fine, water-resistant, stainless steel gentleman’s wristwatch with round button chronograph, registers, steel bezel with tachometer and a stainless steel Rolex Oyster bracelet. C. three… Read More »Rolex Cosmograph Daytona 6239 from 1961 to 1976

Rolex “Twinlock” and “Triplock” crowns

by John
December 10, 2016October 10, 2023

One of the most important and unique features of the Oyster case is its famous crown. The “Twinlock” crown is used on all regular models… Read More »Rolex “Twinlock” and “Triplock” crowns