Side by side

CWC RN Automatic Divers Watch Mk.2vsHalios Seaforth IV

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

RN Automatic Divers Watch Mk.2
CWCRN Automatic Divers Watch Mk.2
MSRP $1,249
Seaforth IV
HaliosSeaforth IV
MSRP $765
What people say

Owners + reviewers, side by side

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

CWC RN Automatic Divers Watch Mk.2

Owners widely praise the CWC RN Diver for its build quality, comfortable wearability, and classic design with desirable brand heritage, suitable for diving. Some owners consider it a favorite, appreciating its case wear and aging tritium as a classic replacement for previous military issue watches. However, a common complaint across multiple sources is the fixed spring bars, which limit strap options, and some find the watch overpriced for its features, particularly when compared to other military-style watches or when noting specific branding text. One owner wishes CWC offered a smaller diver size. On balance, owners rate the CWC RN Diver highly for its utilitarian capabilities and historical connection, despite concerns about strap versatility and value.

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.

At a glance

9 of 29 specs differ
Diameter
RN Automatic Divers Watch Mk.241mm
Seaforth IV40mm
Power Reserve
RN Automatic Divers Watch Mk.240h
Seaforth IV40h
Water Resistance
RN Automatic Divers Watch Mk.2300m
Seaforth IV200m
MSRP
RN Automatic Divers Watch Mk.2$1,249
Seaforth IV$765

Full specifications

Case

5 specs
Diameter
41mm
40mm
Thickness
12mm
12.4mm
Lug-to-Lug
47mm
46.5mm
Material
Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Sapphire (double-domed)
Dial Color
CWC RN Automatic Divers Watch Mk.2, Stainless Steel (RN300-MT AS120)
Blue
Lume
Super-LumiNova
None

Pricing

1 specs
MSRP
$1,249
$765
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.

Follow this matchup

Get a note when CWC RN Automatic Divers Watch Mk.2 vs Halios Seaforth IV gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

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