Nomos Glashütte Ahoi Ahoi Datum Doctors without Borders Germany

Reference 551.S2

About this watch

The Nomos Glashütte Ahoi 551.S2 is a masterpiece that beautifully marries functionality with purpose, showcasing impeccable craftsmanship and a sleek design. This stunning timepiece boasts an automatic movement, exceptional accuracy, and a patented date mechanism. The clean, white dial adorned with mixed indexes and stick hands exudes a modern yet timeless charm. With a water resistance of up to 200 meters and a versatile design suitable for both casual outings and upscale events, this watch is perfect for daily wear or special occasions. Its commitment to social consciousness, supporting Doctors without Borders, makes it not only stylish but also incredibly functional and meaningful.
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Key Features

  • Automatic Nomos Glashütte caliber Zeta movement
  • 200m water resistance
  • Patented date mechanism
  • Clean white dial with mixed indexes and stick hands
  • Sapphire glass for scratch-resistance
  • Open case back for intricate movement display

Specifications

Brand
Nomos Glashütte
Family
Ahoi
Model
Ahoi Datum Doctors without Borders Germany
Reference
551.S2
Movement
zeta
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
Case
Stainless Steel 40mm
Dial Color
White
Crystal
Sapphire
Water Resistance
200

Current Listings

[WTS] Nomos Ahoi 516 Sky $2425

Nomos Ahoi 516 Sky $2425

Nomos - Ahoi 516 Sky · $2,425
The Nomos Ahoi 516 Sky is a dive watch featuring a sky blue dial, white superluminova hour indexes, and an orange seconds hand. It has a diameter of 38.5 mm and a height of 9.8 mm.

  • Condition: Used with minor scratches/hairlines (see pictures)
  • Case diameter: 38.5 mm
  • Height: 9.8 mm
  • Lug-to-lug distance: 48.7 mm
Posted at
Apr 19, 2026, 6:50 PM
Active
[WTS] Nomos Ahoi Atlantik ref. 561 - EU

Nomos Ahoi Atlantik ref. 561 - EU

Nomos - 561 · $2,000
A Nomos Ahoi Atlantik watch in the short version, presented in a full kit with box and papers. It's a beautiful piece that oozes warmth, much nicer than the current production model.

  • Condition: Very good condition, minor micro swirls on polished surfaces
  • Case size: 36mm diameter
  • Strap options: Original nylon strap, 18mm cordovan leather band included as free gift
Posted at
Apr 15, 2026, 10:31 AM
Active