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HASSLE-FREE 30 Day RETURNS
If you return a watch in its original condition within 30 days, you will receive a full refund, less shipping costs, issued in the same tender as the original purchase. Final sale items are ineligible for returns. Learn More
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Diving in style: At 40 millimeters in diameter, the NOMOS Glashutte Ahoi Datum Signalblau is very large, and very blue too: siren blue. It also tells time in the dark, and the day’s date is easily visible even in murky waters, all quite automatically so—as NOMOS caliber DUW 5101 is at work within. Glance through the sapphire crystal glass back and you can watch it as it divides time. The blue luster comes from the tempered blue balance spring of the NOMOS swing system, the watchmaking company’s proprietary escapement. We think it’s just as beautiful as the blue dial.
NOMOS caliber DUW 5101—ticks automatically and doesn’t mind counting the days. The date ring is set around the movement, keeping it flat and elegant despite the complication—a patent-protected construction. The bidirectional winding rotor is highly praised for its excellent winding performance, and the whole movement for its meticulous rate.
Product Details
Case
- Case Shape: Round
- Case Material: Steel
- Case Size: XL mm
- Dial Markers: Arabic and Index
- Dial Color: Blue
- Movement: Automatic/Self Winding
Strap
- Strap/Bracelet: Strap
- Strap/Bracelet Material: Textile
- Strap/Bracelet Color: Blue
Features
Display Big Date, Power ReserveModel Number
554Item Information
Diving in style: At 40 millimeters in diameter, the NOMOS Glashutte Ahoi Datum Signalblau is very large, and very blue too: siren blue. It also tells time in the dark, and the day’s date is easily visible even in murky waters, all quite automatically so—as NOMOS caliber DUW 5101 is at work within. Glance through the sapphire crystal glass back and you can watch it as it divides time. The blue luster comes from the tempered blue balance spring of the NOMOS swing system, the watchmaking company’s proprietary escapement. We think it’s just as beautiful as the blue dial.
NOMOS caliber DUW 5101—ticks automatically and doesn’t mind counting the days. The date ring is set around the movement, keeping it flat and elegant despite the complication—a patent-protected construction. The bidirectional winding rotor is highly praised for its excellent winding performance, and the whole movement for its meticulous rate.