Side by side

Marathon Steel Navigator SSNAV AutovsZelos Helica

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

Steel Navigator SSNAV Auto
MarathonSteel Navigator SSNAV Auto
MSRP $1,300
Helica
ZelosHelica
MSRP $499

At a glance

8 of 29 specs differ
Diameter
Steel Navigator SSNAV Auto41mm
Helica39mm
Power Reserve
Steel Navigator SSNAV Auto40h
Helica40h
Water Resistance
Steel Navigator SSNAV Auto60m
Helica100m
MSRP
Steel Navigator SSNAV Auto$1,300
Helica$499

Full specifications

Case

5 specs
Category
Pilot
Diver
Diameter
41mm
39mm
Thickness
11.5mm
10.5mm
Lug-to-Lug
48mm
39mm
Water Resistance
60m
100m

Crystal & Dial

1 specs
Dial Color
Black
39 - Wave MOP

Movement

1 specs
Caliber
Sellita SW200-1
Miyota 9015

Pricing

1 specs
MSRP
$1,300
$499

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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 Steel Navigator SSNAV Auto

The Marathon Steel Navigator SSNAV Auto is praised for its high-accuracy quartz movement, with owners noting its comfort and reliable performance. Reviewers highlight its functional tool-watch appeal, featuring a sandblasted steel case, tritium tubes for constant low-light visibility, and 100-meter water resistance. One owner finds the 41mm case runs a bit small. The Marathon Steel Navigator SSNAV Auto utilizes an ETA F06.412 quartz movement with a claimed accuracy of +/- 10 seconds per year and includes a GMT bidirectional bezel. Overall, owners and reviewers rate the Marathon Steel Navigator SSNAV Auto highly for its comfortable wear and dependable, high-accuracy quartz movement.

Zelos Helica

Owners widely praise the Zelos Helica for its stunning, often color-shifting dials, with specific mentions of the MoP, slate grey, 'Steel Blue', and red opal variants being particularly captivating and artful. The 39mm case size is noted as fitting well on smaller wrists, and the overall build quality and finishing for the price are frequently highlighted as impressive, with one owner calling it "a lot of watch for the price." Some owners appreciate the novel bracelet designs and full lume dials, while others find the bracelet and clasp edges sharp or the clasp lacking on-the-fly adjustment. Opinions on the date window are mixed, with one owner disliking it. The Zelos Helica Moonphase was considered cluttered by one owner, and its $1K USD price point was felt to be steep by another, though popular variants sold out rapidly. Overall, owners rate the Zelos Helica highly for its striking dial designs and impressive value proposition.

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