Side by side

Marathon GPQ (General Purpose Quartz) Field WatchvsGrand Seiko SBGP015

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
SBGP015
Grand SeikoSBGP015
MSRP $3,800

At a glance

11 of 29 specs differ
Diameter
GPQ (General Purpose Quartz) Field Watch34mm
SBGP01540mm
Power Reserve
GPQ (General Purpose Quartz) Field Watch40h
SBGP01540h
Water Resistance
GPQ (General Purpose Quartz) Field Watch30m
SBGP015200m
MSRP
GPQ (General Purpose Quartz) Field Watch$420
SBGP015$3,800

Full specifications

Case

7 specs
Category
Field
Diver
Diameter
34mm
40mm
Thickness
11.5mm
12.4mm
Lug-to-Lug
41mm
47.1mm
Lug Width
16mm
20mm
Material
Fibreshell Composite
Stainless Steel
Water Resistance
30m
200m

Crystal & Dial

2 specs
Crystal
Acrylic
Sapphire
AR Coating
Inner
Yes

Movement

1 specs
Caliber
Swiss High-Torque Quartz (3J, EOL)
9F85

Pricing

1 specs
MSRP
$420
$3,800

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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 SBGP015

Owners widely praise the Grand Seiko SBGP015 for its stupendous, substantial, and classy versatility, with reviewers noting the dial print is exceptionally sharp, casting shadows under light. The Grand Seiko 9F85 quartz movement is lauded for its excellent timekeeping, with one owner purchasing it as a grab-and-go option. The watch is listed for £1900. Overall, owners rate the Grand Seiko SBGP015 highly for its sharp dial print and the accuracy of its 9F85 quartz movement.

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