Floating dial

Ref 16520 MARK 1

It is nicknamed “floating dial” and it features a 5-line dial. The fifth (floating) line is further away from the others (floating. The typeface has accentuated serifs, an inverted 6, and tritium lume. This graphic design sports a unique feature. The two “Os” in CHRONOMETER differ from each other — the first one is narrower and the second one is wider. A very rare version of the Mk I dial with a glossy background is referred to as the “porcelain dial”.