Side by side

NOMOS Glashütte Ahoi neomatik siren bluevsTudor Monarch

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

Monarch
TudorMonarch
MSRP $5,875

At a glance

19 of 29 specs differ
Diameter
Ahoi neomatik siren blue36.3mm
Monarch39mm
Power Reserve
Ahoi neomatik siren blue43 hoursh
Monarch65h
Water Resistance
Ahoi neomatik siren blue200m
Monarch100m
MSRP
Ahoi neomatik siren blue$4,540
Monarch$5,875

Full specifications

Case

8 specs
Category
Tool
Diameter
36.3mm
39mm
Thickness
9.6mm
11.9mm
Lug-to-Lug
45.5mm
46mm
Lug Width
18mm
20mm
Finish
Polished + Satin
Water Resistance
200m
100m
Caseback
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
AR Coating
Dial Color
Blue
Champagne
Indices
Applied

Movement

6 specs
Caliber
DUW 3001
MT5662-2U
Beat Rate
21,600 vph
0 vph
Power Reserve
43 hoursh
65h
Jewels
27
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$4,540
$5,875

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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.

Tudor Monarch

The Tudor Monarch is praised for its crisp case finishing, solid H-link bracelet with T-fit clasp, and a 39mm size that wears well, though its eclectic neoclassical dial design is noted. It features a METAS-certified Master Chronometer movement with a 65-hour power reserve, visible through a display case back. The watch has a vintage-inspired dial with a unique champagne color and California layout, though it lacks lume and its modern, angular 39mm case doesn't wear smaller than its dimensions suggest. Its 11.9mm thickness is noted as a bit disappointing, but faceted case sides and box sapphire crystals contribute to a slender wearing experience. On balance, reviewers praise the Tudor Monarch for its sharp case finishing and Master Chronometer movement at its price point.

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