Side by side

Marathon Steel Navigator SSNAV AutovsGruppo Gamma Field III

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
Field III
Gruppo GammaField III
MSRP $439

At a glance

12 of 29 specs differ
Diameter
Steel Navigator SSNAV Auto41mm
Field III40mm
Power Reserve
Steel Navigator SSNAV Auto40h
Field III41h
Water Resistance
Steel Navigator SSNAV Auto60m
Field III200m
MSRP
Steel Navigator SSNAV Auto$1,300
Field III$439

Full specifications

Case

7 specs
Category
Pilot
Field
Diameter
41mm
40mm
Thickness
11.5mm
14mm
Lug-to-Lug
48mm
48.5mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
60m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Sellita SW200-1
Seiko Instruments NH38A
Power Reserve
40h
41h

Pricing

1 specs
MSRP
$1,300
$439

Follow this matchup

Get a note when Marathon Steel Navigator SSNAV Auto vs Gruppo Gamma Field III 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.

Gruppo Gamma Field III

The watch's 200m water resistance is a notable strength. A weakness is the use of the Seiko NH34A GMT movement, which might be considered less desirable than some other options due to its relatively lower grade compared to other movements in this price range.

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.