Side by side

Marathon GPQ (General Purpose Quartz) Field WatchvsGrand Seiko SBGX353

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

GPQ (General Purpose Quartz) Field Watch
MarathonGPQ (General Purpose Quartz) Field Watch
MSRP $420
SBGX353
Grand SeikoSBGX353
MSRP $4,100

At a glance

9 of 29 specs differ
Diameter
GPQ (General Purpose Quartz) Field Watch34mm
SBGX35334mm
Power Reserve
GPQ (General Purpose Quartz) Field Watch40h
SBGX35340h
Water Resistance
GPQ (General Purpose Quartz) Field Watch30m
SBGX35330m
MSRP
GPQ (General Purpose Quartz) Field Watch$420
SBGX353$4,100

Full specifications

Case

5 specs
Category
Field
Dress
Thickness
11.5mm
10.7mm
Lug-to-Lug
41mm
41.5mm
Lug Width
16mm
18mm
Material
Fibreshell Composite
Stainless Steel

Crystal & Dial

2 specs
Crystal
Acrylic
Sapphire
AR Coating
Inner
Yes

Movement

1 specs
Caliber
Swiss High-Torque Quartz (3J, EOL)
9F61

Pricing

1 specs
MSRP
$420
$4,100

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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 GPQ (General Purpose Quartz) Field Watch

Owners widely praise the Marathon GPQ (General Purpose Quartz) Field Watch for its rugged quartz movement, accuracy, and tritium lume. Reviewers and owners alike highlight its solid build, legibility, and comfortable, lightweight wear, making it particularly well-suited for smaller wrists. Some owners, however, consider the price point of $350-420 to be somewhat high. On balance, the consensus is that owners rate the Marathon GPQ (General Purpose Quartz) Field Watch highly for its dependable quartz accuracy and excellent tritium lume.

Grand Seiko SBGX353

The Grand Seiko SBGX353 is widely praised for its mesmerizing "Skyflake" textured blue dial, considered by owners to be "perfect art." Reviewers and owners alike highlight the watch's elegant 34mm case size and the advanced 9F61 quartz movement, noting its exceptional ±10 seconds per year accuracy and precise second-hand alignment. Some owners find the dial's aesthetic appeal slightly diminished when worn compared to other options, and one owner replaced the quick-release buckle for a Hirsch clasp. Overall, owners rate the Grand Seiko SBGX353 highly for its exquisite dial finishing and the precision of its quartz movement at its price point.

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