Side by side

Marathon Steel Navigator SSNAV AutovsSugess Seestern S434 Pro Diver

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
Seestern S434 Pro Diver
SugessSeestern S434 Pro Diver
MSRP $249

At a glance

13 of 29 specs differ
Diameter
Steel Navigator SSNAV Auto41mm
Seestern S434 Pro Diver40mm
Power Reserve
Steel Navigator SSNAV Auto40h
Seestern S434 Pro Diver40h
Water Resistance
Steel Navigator SSNAV Auto60m
Seestern S434 Pro Diver200m
MSRP
Steel Navigator SSNAV Auto$1,300
Seestern S434 Pro Diver$249

Full specifications

Case

7 specs
Category
Pilot
Diver
Diameter
41mm
40mm
Thickness
11.5mm
12mm
Lug-to-Lug
48mm
46mm
Material
316L Stainless Steel
Stainless Steel/Rose Gold
Water Resistance
60m
200m
Caseback
Solid
Engraved

Crystal & Dial

2 specs
Dial Color
Black
2 Salmon
Lume
None
Super-LumiNova BGW9

Movement

3 specs
Caliber
Sellita SW200-1
NH35
Beat Rate
28,800 vph
3 vph
Complications
None
GMT, Chronograph, Moonphase, Date

Pricing

1 specs
MSRP
$1,300
$249

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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 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.

Sugess Seestern S434 Pro Diver

Owners widely praise the Sugess Seestern S434 Pro Diver for its impressive finishing and craftsmanship at its price point, highlighting the applied indices that play with light, excellent BGW9 lume, and attractive color options. Specific positive notes include the domed sapphire crystal, short lug-to-lug, and on-the-fly clasp adjustment. However, some owners report quality control issues such as misaligned bezels or indices, while others with V2 models experience no such problems. Caveats include slight bezel back play, light AR coating on the crystal, and a clasp that could be smoother, with one owner desiring a color-matched date wheel. On balance, owners rate the Sugess Seestern S434 Pro Diver highly for its exceptional value and build quality, particularly the dial finishing and lume.

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