Rolex

Geneva, Switzerland. Founded 1905. Rolex SA (Hans Wilsdorf Foundation).

Founded in London in 1905 and based in Geneva since 1919; the Oyster case, Perpetual rotor and Datejust defined the modern wristwatch.

Four to six digits plus bezel/material letters (LN, LV, BLRO...), e.g. 126610LN; the -0001 configuration code used on rolex.com is stored as a variant.