Side by side

NOMOS Glashütte Ahoi neomatik siren bluevsPhoibos Reef Master

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Reef Master
PhoibosReef Master
MSRP $335

At a glance

17 of 29 specs differ
Diameter
Ahoi neomatik siren blue36.3mm
Reef Master42mm
Power Reserve
Ahoi neomatik siren blue43 hoursh
Reef Master40h
Water Resistance
Ahoi neomatik siren blue200m
Reef Master200m
MSRP
Ahoi neomatik siren blue$4,540
Reef Master$335

Full specifications

Case

7 specs
Category
Tool
Diver
Diameter
36.3mm
42mm
Thickness
9.6mm
13mm
Lug-to-Lug
45.5mm
48mm
Lug Width
18mm
22mm
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Blue
Green
Indices
Applied
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
DUW 3001
SII NH38
Beat Rate
21,600 vph
28,800 vph
Power Reserve
43 hoursh
40h
Jewels
27
25

Pricing

1 specs
MSRP
$4,540
$335

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

NOMOS Glashütte Ahoi neomatik siren blue

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.

Phoibos Reef Master

Owners widely praise the Phoibos Reef Master for its exceptional value, highlighting its sapphire crystal, DLC coating, and extensive BGW9 lume. The watch is noted for its cool lume, with one owner finding it not bulky despite its robust build. The Shamrock Green dial and texture are highly praised, as is the comfortable bracelet with solid end links. However, the bezel action is described as rough, and the basic folding clasp is a disappointment. Accuracy is reported as excellent, with one owner seeing +-2 sec/day. Some find the 42mm size almost too big for their wrists, and the date window is considered too small. Overall, owners rate the Phoibos Reef Master highly for its impressive feature set and value at its price point.

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