Side by side

Marathon Steel Navigator SSNAV-D AutovsSeiko Diamond Collection

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
Diamond Collection
SeikoDiamond Collection
MSRP $525

At a glance

10 of 29 specs differ
Diameter
Steel Navigator SSNAV-D Auto41mm
Diamond Collection30mm
Power Reserve
Steel Navigator SSNAV-D Auto40h
Diamond Collection40h
Water Resistance
Steel Navigator SSNAV-D Auto60m
Diamond Collection50m
MSRP
Steel Navigator SSNAV-D Auto$1,400
Diamond Collection$525

Full specifications

Case

7 specs
Category
Pilot
Dress
Diameter
41mm
30mm
Thickness
11mm
6.3mm
Lug-to-Lug
48mm
36.5mm
Lug Width
20mm
5mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
60m
50m

Movement

2 specs
Caliber
Sellita SW220-1
7N01
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$1,400
$525

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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.

Seiko Diamond Collection

The Seiko Diamond Collection is widely praised by owners for its stunning beauty, featuring 14 diamonds, a mother-of-pearl dial, and a two-tone color scheme. Reviewers note its dial is difficult to capture in photos and that its fit and finish suggest excellent value, especially when purchased on sale. One owner describes the gold plating on the bracelet showing some fading from desk work, and its gold tone may not suit all tastes. Overall, owners rate the Seiko Diamond Collection highly for its striking aesthetics and perceived value.

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