Side by side

Marathon MSAR (Medium Search & Rescue) Diver's AutomaticvsZelos Hammerhead V3 300m Titanium

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

MSAR (Medium Search & Rescue) Diver's Automatic
MarathonMSAR (Medium Search & Rescue) Diver's Automatic
MSRP $1,800
Hammerhead V3 300m Titanium
ZelosHammerhead V3 300m Titanium
MSRP $559

At a glance

9 of 29 specs differ
Diameter
MSAR (Medium Search & Rescue) Diver's Automatic36mm
Hammerhead V3 300m Titanium44mm
Power Reserve
MSAR (Medium Search & Rescue) Diver's Automatic40h
Hammerhead V3 300m Titanium40h
Water Resistance
MSAR (Medium Search & Rescue) Diver's Automatic300m
Hammerhead V3 300m Titanium300m
MSRP
MSAR (Medium Search & Rescue) Diver's Automatic$1,800
Hammerhead V3 300m Titanium$559

Full specifications

Case

5 specs
Diameter
36mm
44mm
Thickness
18mm
13mm
Lug-to-Lug
44mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Titanium

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
White
Ti - Mosaic MOP

Movement

1 specs
Caliber
Sellita SW200-1
Seiko NH35

Pricing

1 specs
MSRP
$1,800
$559

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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.

Marathon MSAR (Medium Search & Rescue) Diver's Automatic

The Marathon MSAR (Medium Search & Rescue) Diver's Automatic is lauded for its utilitarian, no-nonsense design, exceptional tritium lume for visibility, and comfortable 41mm wearability. Reviewers highlight its robust build, meeting ISO 6425 dive watch standards and approved for military use, demonstrating durability during demanding activities. One reviewer notes the stock rubber strap requires modification for a proper fit. Overall, reviewers rate the Marathon MSAR (Medium Search & Rescue) Diver's Automatic highly for its focus on utility and ruggedness at its price point.

Zelos Hammerhead V3 300m Titanium

The Zelos Hammerhead V3 300m Titanium is widely praised for its exceptional lume, unique and beautiful dial finishing that reflects light dramatically, and solid build quality that exceeds its price point. Owners also highlight its comfortable wearability, especially the lightweight titanium variant, and the convenient on-the-fly micro-adjustment on the bracelet. One owner notes the Japanese movement performs better than anticipated, and the Ti-Damascus variant features a unique, patterned dial and bezel. However, some owners find the 44mm size large, the crown "off," and the bracelet clasp could be more scratch-resistant, with resizing pins described as stubborn. Reattaching the bracelet after removal is also noted as extremely difficult. Overall, owners rate the Zelos Hammerhead V3 300m Titanium highly for its impressive dial aesthetics and value for money.

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