Side by side

Marathon GPQ (General Purpose Quartz) Field WatchvsGrand Seiko SLGH005

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
SLGH005
Grand SeikoSLGH005
MSRP $9,800

At a glance

13 of 29 specs differ
Diameter
GPQ (General Purpose Quartz) Field Watch34mm
SLGH00540mm
Power Reserve
GPQ (General Purpose Quartz) Field Watch40h
SLGH00580h
Water Resistance
GPQ (General Purpose Quartz) Field Watch30m
SLGH005100m
MSRP
GPQ (General Purpose Quartz) Field Watch$420
SLGH005$9,800

Full specifications

Case

7 specs
Category
Field
Dress
Diameter
34mm
40mm
Thickness
11.5mm
11.7mm
Lug-to-Lug
41mm
47mm
Lug Width
16mm
22mm
Material
Fibreshell Composite
Stainless Steel
Water Resistance
30m
100m

Crystal & Dial

2 specs
Crystal
Acrylic
Sapphire
AR Coating
Inner
Yes

Movement

3 specs
Caliber
Swiss High-Torque Quartz (3J, EOL)
9SA5
Type
Quartz
Automatic
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$420
$9,800

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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 SLGH005

The Grand Seiko SLGH005 is widely praised for its stunning "White Birch" textured dial, exceptional finishing including mirror-polished indexes and Zaratsu polishing, and the innovative Caliber 9SA5 movement. Owners and reviewers consistently highlight the dial's texture and the elaborate, mirror-like indexes. The watch's 40mm stainless steel case is noted for its slender, sporty design and comfortable wearability, with some finding its size well-proportioned and its brushed and polished surfaces practical for hiding scratches. The 9SA5 movement is recognized for its 80-hour power reserve and 36,000 vph hi-beat frequency, though one owner found its finishing less impressive than other movement types in a similar price bracket. Some reviewers consider its price somewhat high relative to alternatives and desire a micro-adjustable bracelet. On balance, owners and reviewers rate the Grand Seiko SLGH005 highly for its exquisite dial and finishing, powered by an advanced high-beat movement.

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