The NOMOS Ahoi Datum reference 551.S2 was introduced in 2020 as a limited edition of 250 pieces part of the brand’s ongoing partnership with Doctors without Borders – the German branche in this case. Based on the regular 551 model, it features a red ’12’ – a signature for the Doctors without Borders models- and ‘Ärtze ohne Grenzen’ at 6:00.
