Side by side

Marathon Steel Navigator SSNAV AutovsSeiko Prospex Land Mechanical

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
Prospex Land Mechanical
SeikoProspex Land Mechanical
MSRP $995

At a glance

12 of 29 specs differ
Diameter
Steel Navigator SSNAV Auto41mm
Prospex Land Mechanical39.5mm
Power Reserve
Steel Navigator SSNAV Auto40h
Prospex Land Mechanical72h
Water Resistance
Steel Navigator SSNAV Auto60m
Prospex Land Mechanical200m
MSRP
Steel Navigator SSNAV Auto$1,300
Prospex Land Mechanical$995

Full specifications

Case

6 specs
Category
Pilot
Field
Diameter
41mm
39.5mm
Thickness
11.5mm
12.7mm
Lug-to-Lug
48mm
46.4mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
60m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW200-1
6R55
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$1,300
$995

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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.

Seiko Prospex Land Mechanical

Owners widely praise the Seiko Prospex Land Mechanical for its unique style, useful day-date complication, and value, with some finding it suitable as a one-watch-for-all-occasions. Accuracy and durability are noted as strengths, with one owner reporting good performance even in water submersion. However, multiple owners criticize its size, with figures around 41mm to 43mm and 14.4mm thickness being flagged as too large and thick for smaller wrists. The Hardlex crystal and a potentially loose inner compass bezel are also points of criticism. On balance, owners rate the Seiko Prospex Land Mechanical highly for its unique style and value, despite concerns over its substantial dimensions.

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