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Owners and reviewers widely praise the NOMOS Glashütte Ahoi neomatik siren blue for its vibrant siren blue dial, which pops in any light, and its Bauhaus design language with arresting simplicity. The subtle rose gold accents, neon orange details, and color-matched date window at 6 o'clock are noted as well-thought-out elements. The slim 9.8mm case and 200m water resistance are also highlighted. However, the lume on the hour markers is considered weak and fades quickly, and the watch is not a true ISO-certified diver due to the lack of a dive bezel. Some find the textile strap too casual for anything beyond sophisticated casual wear, and the straight lugs can create a large feel on the wrist. The DUW 3001 movement offers a 43-hour power reserve. On balance, owners and reviewers rate the NOMOS Glashütte Ahoi neomatik siren blue highly for its striking dial and refined, yet casual, aesthetic.
5 Variants
Retail MSRP
$4,540
Low
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Avg
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High
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Static data
Case
36.3mm
Power Reserve
—
Movement
Automatic
Water Resistance
200m
01
Case Dimensions
Diameter36.3mm
Thickness9.6mm
Lug-to-Lug45.5mm
Lug Width18mm
02
Case Build
MaterialStainless Steel
Water Resistance200m
03
Crystal & Dial
CrystalSapphire
Dial Colorsiren blue
04
Movement
Caliber
TypeAutomatic
Beat Rate21,600 vph (3.0Hz)
Power Reserve—
Jewels27
HackingNo
Hand-WindingNo
ComplicationsTime only
05
Design Language
Dial styleMatte
Sub-dials1
BezelFixed
Bracelet / strapFabric strap
HandsBaton
AI-detected from product image · 5/22/2026
In a nutshell
The NOMOS Glashütte Ahoi neomatik siren blue (ref. 562) is an automatic tool watch, with a 36.3mm stainless steel case, 9.6mm thick, powered by the DUW 3001 movement and a 43 hours-hour power reserve. Water resistance is rated to 200m, under a sapphire crystal. Manufacturer MSRP is $4,540. The dial color is blue.