1. Keep things tonal
First things first—you should always start with the style of your watch, namely its material, strap and face. For a classy watch like the A. Lange & Söhne Saxonia 37mm Grey Dial, it's best to keep the rest of your outfit in complementary shades of navy, white and dark brown.
Since the watch has a rose gold case, contrasting it against brown leather really helps the watch stand out, while silver-toned bracelets are great for matching the stunning grey dial.