Side by side

Marathon GPQ (General Purpose Quartz) Field WatchvsLongines PrimaLuna

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
PrimaLuna
LonginesPrimaLuna
MSRP $2,950

At a glance

21 of 29 specs differ
Diameter
GPQ (General Purpose Quartz) Field Watch34mm
PrimaLuna34mm
Power Reserve
GPQ (General Purpose Quartz) Field Watch40h
PrimaLuna72h
Water Resistance
GPQ (General Purpose Quartz) Field Watch30m
PrimaLuna30m
MSRP
GPQ (General Purpose Quartz) Field Watch$420
PrimaLuna$2,950

Full specifications

Case

6 specs
Category
Field
Dress
Thickness
11.5mm
11.6mm
Lug Width
16mm
8mm
Material
Fibreshell Composite
Stainless Steel
Finish
Brushed and polished
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

6 specs
Crystal
Acrylic
Sapphire
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
Black
Blue
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova

Movement

8 specs
Caliber
Swiss High-Torque Quartz (3J, EOL)
L899.5
Type
Quartz
Automatic
Beat Rate
28,800 vph
25,200 vph
Power Reserve
40h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date, Moon phase display at 6 o'clock

Pricing

1 specs
MSRP
$420
$2,950

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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.

Longines PrimaLuna

Owners widely praise the Longines PrimaLuna for its stylish, understated design and comfortable 26.5mm and 34mm case sizes, with some preferring the quartz for its lower maintenance and others the automatic for its craftsmanship. The automatic movement, an L899.5 or Caliber L899, offers a 72-hour power reserve and exhibits consistent accuracy averaging a loss of 1.3 seconds per day in testing, though it runs 3-4 seconds slower on the wrist. The redesigned collection features a curvier case with contemporary lug integration and is available in steel or bi-metal. On balance, owners and reviewers appreciate the Longines PrimaLuna for its elegant styling and reliable automatic movement, though some find its brand prestige and design less compelling compared to certain luxury alternatives.

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