Side by side

Marathon Steel Navigator SSNAV-D AutovsSpinnaker Dumas Automatic

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
Dumas Automatic
SpinnakerDumas Automatic
MSRP $239

At a glance

8 of 29 specs differ
Diameter
Steel Navigator SSNAV-D Auto41mm
Dumas Automatic44mm
Power Reserve
Steel Navigator SSNAV-D Auto40h
Dumas Automatic40h
Water Resistance
Steel Navigator SSNAV-D Auto60m
Dumas Automatic300m
MSRP
Steel Navigator SSNAV-D Auto$1,400
Dumas Automatic$239

Full specifications

Case

5 specs
Category
Pilot
Diver
Diameter
41mm
44mm
Thickness
11mm
15mm
Lug Width
20mm
22mm
Water Resistance
60m
300m

Crystal & Dial

1 specs
Dial Color
Black
Blue

Movement

1 specs
Caliber
Sellita SW220-1
SII NH35A

Pricing

1 specs
MSRP
$1,400
$239

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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.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

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