Side by side

NOMOS Glashütte Ahoi neomatik siren bluevsTudor Black Bay 58 18K

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

Black Bay 58 18K
TudorBlack Bay 58 18K
MSRP $22,550

At a glance

19 of 29 specs differ
Diameter
Ahoi neomatik siren blue36.3mm
Black Bay 58 18K39mm
Power Reserve
Ahoi neomatik siren blue43 hoursh
Black Bay 58 18K70h
Water Resistance
Ahoi neomatik siren blue200m
Black Bay 58 18K200m
MSRP
Ahoi neomatik siren blue$4,540
Black Bay 58 18K$22,550

Full specifications

Case

8 specs
Category
Tool
Diver
Diameter
36.3mm
39mm
Thickness
9.6mm
12.7mm
Lug-to-Lug
45.5mm
46mm
Lug Width
18mm
20mm
Material
Stainless Steel
18k Yellow Gold
Finish
Satin
Caseback
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
AR Coating
Dial Color
Blue
Green
Indices

Movement

6 specs
Caliber
DUW 3001
MT5400
Beat Rate
21,600 vph
0 vph
Power Reserve
43 hoursh
70h
Jewels
27
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$4,540
$22,550

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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 Black Bay 58 18K

Owners appreciate the substantial feel of the 18K gold Tudor Black Bay 58 on the wrist, with reviewers noting the brushed gold finishing and 39mm case size. The watch is powered by the COSC-certified Manufacture Caliber MT5400 with a 70-hour power reserve, visible through an open caseback. Sources offer differing price points, ranging from $16,800 to $32,100 depending on the strap or bracelet. Some reviewers criticize the brushed finish for diminishing the visual luxury of gold and find the green dial and bezel color combination divisive or lacking charisma. Overall, owners and reviewers find the Tudor Black Bay 58 18K to be an ambitious, albeit divisive, precious metal sports watch, with praise for its substantial feel and brushed gold finishing.

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