Side by side

Marathon Steel Navigator SSNAV-D AutovsSugess MoonPhase Master SU2108

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

Steel Navigator SSNAV-D Auto
MarathonSteel Navigator SSNAV-D Auto
MSRP $1,400
MoonPhase Master SU2108
SugessMoonPhase Master SU2108
MSRP $549

At a glance

15 of 29 specs differ
Diameter
Steel Navigator SSNAV-D Auto41mm
MoonPhase Master SU210840mm
Power Reserve
Steel Navigator SSNAV-D Auto40h
MoonPhase Master SU210841h
Water Resistance
Steel Navigator SSNAV-D Auto60m
MoonPhase Master SU21085m
MSRP
Steel Navigator SSNAV-D Auto$1,400
MoonPhase Master SU2108$549

Full specifications

Case

8 specs
Category
Pilot
Chronograph
Diameter
41mm
40mm
Thickness
11mm
11.5mm
Lug-to-Lug
48mm
46mm
Material
316L Stainless Steel
Stainless Steel/Gold
Finish
Brushed and polished
Polished
Water Resistance
60m
5m
Caseback
Solid
Display

Crystal & Dial

1 specs
Dial Color
Black
S438 White

Movement

5 specs
Caliber
Sellita SW220-1
Seagull ST21
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
41h
Jewels
25
21
Complications
None
GMT, Moonphase, Date

Pricing

1 specs
MSRP
$1,400
$549

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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-D Auto

The Marathon Steel Navigator SSNAV-D Auto is praised for its durable construction, featuring a sandblasted steel case with improved lugs, a bi-directional bezel with excellent action, and 100m water resistance. Owners appreciate the constant visibility provided by self-illuminating tritium gas tubes and the precision of its ETA F06.412 quartz movement, which offers accuracy to about 10 seconds per year. The watch includes a GMT bezel for dual timekeeping and a synthetic sapphire crystal. Overall, owners and reviewers rate the Marathon Steel Navigator SSNAV-D Auto highly for its robust tool-watch design and reliable tritium illumination.

Sugess MoonPhase Master SU2108

Owners widely praise the Sugess MoonPhase Master SU2108 for its gorgeous, affordable dress watch aesthetic, intricate dial details, and elegant rose gold finish. Reviewers note a well-decorated Seagull ST2108 movement averaging +7 seconds daily, a lumed moonphase, applied Roman numerals, and a multi-textured dial. However, some owners find the 40mm diameter and 50mm lug-to-lug too large for smaller wrists, and the polished blue hands can make quick time-telling difficult. Criticisms also include a date hand that obscures numerals, a domed sapphire crystal lacking AR coating, and stiff stock straps. On balance, owners rate the Sugess MoonPhase Master SU2108 highly for its elegant design and value in the affordable dress watch segment.

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