Side by side

Halios Seaforth IVvsNOMOS Glashütte Tangomat ruthenium

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

Seaforth IV
HaliosSeaforth IV
MSRP $765
Tangomat ruthenium
NOMOS GlashütteTangomat ruthenium
MSRP $3,700

At a glance

18 of 29 specs differ
Diameter
Seaforth IV40mm
Tangomat ruthenium38.3mm
Power Reserve
Seaforth IV40h
Tangomat ruthenium43 hoursh
Water Resistance
Seaforth IV200m
Tangomat ruthenium30m
MSRP
Seaforth IV$765
Tangomat ruthenium$3,700

Full specifications

Case

8 specs
Category
Diver
Dress
Diameter
40mm
38.3mm
Thickness
12.4mm
8.3mm
Lug-to-Lug
46.5mm
48mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Water Resistance
200m
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal
Sapphire (double-domed)
Sapphire
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Blue
Black
Indices
Applied

Movement

4 specs
Caliber
Sellita SW200-2
DUW 5001
Beat Rate
28,800 vph
21,600 vph
Power Reserve
40h
43 hoursh
Jewels
25
26

Pricing

1 specs
MSRP
$765
$3,700

Follow this matchup

Get a note when Halios Seaforth IV vs NOMOS Glashütte Tangomat ruthenium 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.

Halios Seaforth IV

Owners widely praise the Halios Sunburst Blue for its perfect 40mm size, stunning sunburst dial, and excellent lume, with one owner calling it Halios's best effort and a potential "Omega AT killer." The ETA 2824 movement is noted as running smoothly, and the watch is considered a great value with strong resale. Some owners desire larger sizes or different dial colors, and one reviewer found the Sinn 556i more versatile. The sapphire bezel is described as tall and flat, which is a point of contention for some. Overall, owners rate the Halios Sunburst Blue highly for its design, size, and value.

From video reviewers

The sunburst blue dial is a standout feature. Limited water resistance is a shared concern.

NOMOS Glashütte Tangomat ruthenium

Owners widely praise the NOMOS Glashütte Tangomat ruthenium for its Glashütte watchmaking and Bauhaus design, with one owner noting accuracy at +2 seconds/day and a 43-hour power reserve. Some owners find the Tangomat thicker than other models, with case proportions that may not suit its sharp design, and one owner expressed a preference for newer movements over the older Epsilon automatic. Overall, owners value the NOMOS Glashütte Tangomat ruthenium for its precise timekeeping and design ethos.

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.