Side by side

Marathon Jeep Willys SSGPMvsSeiko Prospex Sea Save the Ocean Special Edition

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

Jeep Willys SSGPM
MarathonJeep Willys SSGPM
MSRP $780
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Marathon Jeep Willys SSGPM

The Marathon Jeep Willys SSGPM is praised for its handsome, retro design and attractive, clean dials with great hands. Owners note the case is nicely shaped and offers good value at $650 USD. However, some find the lugs extend far on smaller wrists, and the corporate Jeep logo detracts from the dial's appeal for some. The leather strap may need replacement with regular wear. Overall, owners and reviewers rate the Marathon Jeep Willys SSGPM highly for its retro design and value, despite some reservations about the Jeep branding and strap.

Seiko Prospex Sea Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its attractive, unique, and textured dials, often described as having a "Grand Seiko feel" at a more accessible price point, with specific mentions of wave patterns, lagoon hues, and manta ray motifs. Owners appreciate the smooth bezel operation and satisfactory lume. Accuracy figures vary, with one owner reporting +5 seconds per day, while another notes a range from +1/+2 to about -6 seconds per day. The 6R35 movement offers a 70-hour power reserve, and some models feature sapphire crystals. Criticisms include a desire for exhibition casebacks and concerns about the quality and security of the stamped metal clasps and bracelets, which are frequently described as rattly or underwhelming, though this is noted as a common Seiko trait. Some owners are split on the number of Save the Ocean variations and dislike the cyclops magnifier.

At a glance

14 of 29 specs differ
Diameter
Jeep Willys SSGPM41mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
Jeep Willys SSGPM40h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Jeep Willys SSGPM30m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Jeep Willys SSGPM$780
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

7 specs
Category
Field
Diver
Diameter
41mm
45mm
Thickness
11mm
13.2mm
Lug-to-Lug
48mm
47.7mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
30m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Sellita SW210-1
4R36
Type
Manual
Automatic
Power Reserve
40h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$780
$625
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