Side by side

Marathon GPQ (General Purpose Quartz) Field WatchvsZelos Helica Moonphase

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
Helica Moonphase
ZelosHelica Moonphase
MSRP $1,049

At a glance

12 of 29 specs differ
Diameter
GPQ (General Purpose Quartz) Field Watch34mm
Helica Moonphase39mm
Power Reserve
GPQ (General Purpose Quartz) Field Watch40h
Helica Moonphase40h
Water Resistance
GPQ (General Purpose Quartz) Field Watch30m
Helica Moonphase100m
MSRP
GPQ (General Purpose Quartz) Field Watch$420
Helica Moonphase$1,049

Full specifications

Case

7 specs
Category
Field
Moonphase
Diameter
34mm
39mm
Thickness
11.5mm
10mm
Lug-to-Lug
41mm
39mm
Lug Width
16mm
20mm
Material
Fibreshell Composite
316L Stainless Steel
Water Resistance
30m
100m

Crystal & Dial

2 specs
Crystal
Acrylic
Sapphire
Dial Color
Black
Meteorite

Movement

2 specs
Caliber
Swiss High-Torque Quartz (3J, EOL)
Sellita SW288 Moonphase
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$420
$1,049

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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.

Zelos Helica Moonphase

Owners widely praise the Zelos Helica Moonphase for its gorgeous aventurine dial, unique industrial-dress aesthetic, and comfortable wearability, with one owner calling it spectacular and another their favorite Zelos. The moonphase complication is frequently highlighted as beautiful, though some find the double moon distracting or the dial cluttered. A manual-wind movement combined with a screw-down crown is noted as a drawback by some, requiring adjustment and potentially feeling fragile when fully wound, while one owner reports a 43-hour power reserve. On balance, owners rate the Zelos Helica Moonphase highly for its stunning aventurine dial and unique design at its price point.

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