Side by side

Marathon Jeep Rubicon GSARvsSeiko King Seiko KSK

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

Jeep Rubicon GSAR
MarathonJeep Rubicon GSAR
MSRP $2,100
King Seiko KSK
SeikoKing Seiko KSK
MSRP $2,000

At a glance

15 of 29 specs differ
Diameter
Jeep Rubicon GSAR41mm
King Seiko KSK38.3mm
Power Reserve
Jeep Rubicon GSAR40h
King Seiko KSK72h
Water Resistance
Jeep Rubicon GSAR300m
King Seiko KSK100m
MSRP
Jeep Rubicon GSAR$2,100
King Seiko KSK$2,000

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
41mm
38.3mm
Thickness
14mm
11.7mm
Lug-to-Lug
48mm
46mm
Lug Width
20mm
19mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Box
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Green
Black
Lume
None
LumiBrite on Hands

Movement

3 specs
Caliber
Sellita SW200-1
6R55
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$2,100
$2,000

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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 Jeep Rubicon GSAR

The Marathon Jeep Rubicon GSAR is widely praised as a rugged, high-quality tool watch that successfully blends Jeep branding with Marathon's functional heritage, featuring a unique dial with tritium illumination and an automatic Sellita SW200-1 movement. Owners appreciate its satisfying bezel action and durable build, making it a reliable daily wear that pairs well with Jeep's rugged image. However, some find the Jeep logo to be corporate and out of place with Marathon's austere design ethos, while one owner notes that second-hand examples can show wear on the bezel. The watch is priced at $1,500 USD. Overall, owners and reviewers rate the Marathon Jeep Rubicon GSAR highly for its robust construction and distinctive tritium lume, which are considered its strongest assets.

From video reviewers

Illumination technology is a consensus strength. Reviewers did not agree on a specific weakness.

Seiko King Seiko KSK

Owners and reviewers widely praise the King Seiko KSK's sharp, faceted case design and harmonious mid-century aesthetic. Its compact 38.1mm or 37mm size and slim 10.7mm thickness are noted as highly wearable. However, accuracy is a point of contention, with one reviewer reporting a wide range of +25 to -15 seconds per day for the 6R31 movement, while others criticize the standard 6R movement as too thick and a departure from the brand's history. Water resistance is consistently cited as limited to 50 meters, and one owner reported misaligned screws on the caseback and clasp. On balance, owners and reviewers find the King Seiko KSK appealing for its design and wearability, though the movement choice and accuracy are significant drawbacks for some.

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