Side by side

Marathon Steel Navigator SSNAV AutovsGrand Seiko SBGX355

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
SBGX355
Grand SeikoSBGX355
MSRP $4,100

At a glance

11 of 29 specs differ
Diameter
Steel Navigator SSNAV Auto41mm
SBGX35537mm
Power Reserve
Steel Navigator SSNAV Auto40h
SBGX35540h
Water Resistance
Steel Navigator SSNAV Auto60m
SBGX355100m
MSRP
Steel Navigator SSNAV Auto$1,300
SBGX355$4,100

Full specifications

Case

7 specs
Category
Pilot
Dress
Diameter
41mm
37mm
Thickness
11.5mm
10.6mm
Lug-to-Lug
48mm
44.6mm
Lug Width
20mm
19mm
Material
316L Stainless Steel
Titanium
Water Resistance
60m
100m

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

2 specs
Caliber
Sellita SW200-1
9F62
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$1,300
$4,100

Follow this matchup

Get a note when Marathon Steel Navigator SSNAV Auto vs Grand Seiko SBGX355 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 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 SBGX355

The Grand Seiko SBGX355 is widely praised for its beautiful dial, excellent finishing, and perfect 37mm size. Owners report unparalleled accuracy from the 9F62 quartz movement, rated to within 10 seconds per year. The high-intensity titanium case and 100m water resistance are noted features. Some consider the SBGX355 a "baby Snowflake" and a more accessible alternative to other models. Overall, owners and reviewers rate the Grand Seiko SBGX355 highly for its iconic Snowflake dial and exceptional quartz accuracy in a wearable 37mm case.

From video reviewers

The titanium case finishing is a significant strength. The deployant clasp is noted as prone to rattle. Reviewers disagree on the ideal case size for everyday wear.

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.