Omega

Biel/Bienne, Switzerland. Founded 1848. Swatch Group.

Biel-based brand founded in 1848 whose Speedmaster went to the Moon and whose Seamaster, Constellation and De Ville lines span sport to dress.

Modern PIC codes with six dotted segments, e.g. 310.30.42.50.01.001; vintage references like 145.022-69 (material prefix such as ST ignored) or 2998-1.