Nomos Glashütte Ahoi Ahoi Datum Chronometer WatchTime

Reference 551.S1

About this watch

The Nomos Glashütte Ahoi Datum Chronometer is a masterpiece of watchmaking, boasting a sleek and elegant design. Crafted from high-quality stainless steel, this 40mm diameter timepiece features a striking white dial and sapphire crystal glass for added protection. With a water resistance of up to 200 meters, it's perfect for swimmers and those who enjoy aquatic activities. The Nomos Glashütte caliber Zeta automatic movement powers the watch, offering a hassle-free experience with its patented date mechanism and 43-hour power reserve. The mixed indexes add a touch of modernity while maintaining readability, making this watch suitable for both formal and casual occasions.
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Key Features

  • Nomos Glashütte caliber Zeta automatic movement
  • 40mm diameter stainless steel case
  • Sapphire crystal glass for added protection
  • 200m water resistance
  • Patented date mechanism with 43-hour power reserve
  • Mixed indexes for modern readability
  • High-quality strap for easy swapping

Specifications

Brand
Nomos Glashütte
Family
Ahoi
Model
Ahoi Datum Chronometer WatchTime
Reference
551.S1
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
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