Side by side

NOMOS Glashütte Ahoi neomatik siren bluevsSpinnaker Challenger Automatic

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

Challenger Automatic
SpinnakerChallenger Automatic
MSRP $289

At a glance

16 of 29 specs differ
Diameter
Ahoi neomatik siren blue36.3mm
Challenger Automatic42mm
Power Reserve
Ahoi neomatik siren blue43 hoursh
Challenger Automatic40h
Water Resistance
Ahoi neomatik siren blue200m
Challenger Automatic200m
MSRP
Ahoi neomatik siren blue$4,540
Challenger Automatic$289

Full specifications

Case

8 specs
Category
Tool
Diver
Diameter
36.3mm
42mm
Thickness
9.6mm
19mm
Lug-to-Lug
45.5mm
49.5mm
Lug Width
18mm
22mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Inner
Indices
Applied

Movement

4 specs
Caliber
DUW 3001
SII NH35A
Beat Rate
21,600 vph
28,800 vph
Power Reserve
43 hoursh
40h
Jewels
27
25

Pricing

1 specs
MSRP
$4,540
$289

Follow this matchup

Get a note when NOMOS Glashütte Ahoi neomatik siren blue vs Spinnaker Challenger Automatic gets more votes, a community discussion, or a price drop. No account needed.

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.

Spinnaker Challenger Automatic

The Spinnaker Challenger Automatic is widely praised for its fun, playful design, solid build quality, and satisfying bezel action. Owners appreciate the comfortable 42mm DLC-coated case and the thoughtful integration of the Popeye theme, with the character serving as the hour and minute hands. Reviewers note the reliable Seiko NH35 movement and 300m water resistance. Some owners find the blue lume weaker than expected, and the ultra-domed sapphire crystal presents challenges for photography. The thick rubber strap is also cited as difficult to manage. Overall, owners and reviewers rate the Spinnaker Challenger Automatic highly for its unique character integration and solid dive watch fundamentals at its price point.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.