Side by side

Marathon Steel Navigator SSNAV AutovsGrand Seiko SLGC009

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
SLGC009
Grand SeikoSLGC009
MSRP $16,900

At a glance

11 of 29 specs differ
Diameter
Steel Navigator SSNAV Auto41mm
SLGC00943mm
Power Reserve
Steel Navigator SSNAV Auto40h
SLGC00972h
Water Resistance
Steel Navigator SSNAV Auto60m
SLGC009200m
MSRP
Steel Navigator SSNAV Auto$1,300
SLGC009$16,900

Full specifications

Case

7 specs
Category
Pilot
Chronograph
Diameter
41mm
43mm
Thickness
11.5mm
15.6mm
Lug-to-Lug
48mm
50mm
Lug Width
20mm
23mm
Material
316L Stainless Steel
Titanium
Water Resistance
60m
200m

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

2 specs
Caliber
Sellita SW200-1
9SC5
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$1,300
$16,900

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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.

Grand Seiko SLGC009

Owners widely report the Grand Seiko SLGC009 is perceived as "big" but "not obnoxious," with some finding its bold, aggressive, and futuristic design appealing while others deem it too daring for the brand. Opinions are split on its aesthetic, with comparisons ranging from a G-Shock to the Cybertruck. One owner noted a desire for a more offset clasp. The movement is praised by some, though the dial color and hour indexes drew criticism from one voice. The Grand Seiko SLGC009's rumored discontinuation is speculated to potentially aid in value retention. On balance, owners are divided on the Grand Seiko SLGC009's polarizing design, with its movement and wearability being points of discussion.

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