Side by side

Marathon Steel Navigator SSNAV-D QuartzvsSeiko Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition

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

Steel Navigator SSNAV-D Quartz
MarathonSteel Navigator SSNAV-D Quartz
MSRP $1,300

At a glance

14 of 29 specs differ
Diameter
Steel Navigator SSNAV-D Quartz41mm
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition40mm
Power Reserve
Steel Navigator SSNAV-D Quartz40h
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition72h
Water Resistance
Steel Navigator SSNAV-D Quartz60m
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition300m
MSRP
Steel Navigator SSNAV-D Quartz$1,300
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition$1,550

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
41mm
40mm
Thickness
11mm
13mm
Lug-to-Lug
48mm
46.4mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
60m
300m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Swiss High-Torque Quartz
6R55
Type
Quartz
Automatic
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$1,300
$1,550

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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 Quartz

The Marathon Steel Navigator SSNAV-D Quartz is widely praised for its high-accuracy Swiss Made ETA F06.412 HeavyDrive-PreciDrive quartz movement, rated at +/- 10 seconds per year, and its tritium lume. Reviewers and owners highlight its functional tool-watch appeal, noting the sandblasted steel case with an asymmetric design, excellent bi-directional bezel action, and drilled lug holes. Some owners find it perfectly suited for sport/rugged use, though not necessarily as an everyday watch. One owner points out that the case's distinctive asymmetry deviates from current aesthetic trends. Overall, owners and reviewers rate the Marathon Steel Navigator SSNAV-D Quartz highly for its robust build and exceptional timekeeping accuracy at its price point.

Seiko Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition

The Seiko Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition is praised for its attractive emerald green sunburst dial with gold accents and its comfortable wearability. Owners note the dial looks gorgeous in the right light, and some find it fits better than other models. The watch features a 40mm steel case, a domed sapphire crystal, and 300m water resistance, powered by the 6R55 movement with a 72-hour power reserve. However, some find the watch wears top-heavy due to its density and case design, and the bracelet clasp is criticized for stamped parts and limited micro-adjustment. The retail price of €1,700 is considered high by some, with sales recommended. Overall, owners and reviewers appreciate the dial's beauty and the watch's comfortable fit, despite some reservations about its weight distribution and bracelet clasp.

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