Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsHalios Seaforth IV

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

OSAR-D (Original SAR with Date) Automatic 41mm
MarathonOSAR-D (Original SAR with Date) Automatic 41mm
MSRP $1,800
Seaforth IV
HaliosSeaforth IV
MSRP $765

At a glance

10 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Seaforth IV40mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Seaforth IV40h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Seaforth IV200m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Seaforth IV$765

Full specifications

Case

6 specs
Diameter
41mm
40mm
Thickness
13mm
12.4mm
Lug-to-Lug
43.5mm
46.5mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Sapphire (double-domed)
Dial Color
Black
Blue

Movement

1 specs
Caliber
Sellita SW220-1
Sellita SW200-2

Pricing

1 specs
MSRP
$1,800
$765

Follow this matchup

Get a note when Marathon OSAR-D (Original SAR with Date) Automatic 41mm vs Halios Seaforth IV 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.

Marathon OSAR-D (Original SAR with Date) Automatic 41mm

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is noted for its highly legible white dial with applied hour markers and a functional date magnifier, emphasizing its tool-watch purpose. Its Swiss-made Sellita SW200-1 movement is considered reliable and serviceable. One reviewer found the bracelet lacked refinement and preferred the rubber strap option. Overall, owners and reviewers appreciate the Marathon OSAR-D (Original SAR with Date) Automatic 41mm for its excellent legibility and robust movement.

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.

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.