Marathon GPQ (General Purpose Quartz) FieldvsSlow Watches Jo series
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

GPQ (General Purpose Quartz) Field

Jo series
Diameter
34mm
38mm
Lug-to-Lug
41mm
n/a
Thickness
11.5mm
8.2mm
lowest
Water Resistance
30m
100m
highest
MSRP
$420
$235
lowest
Movement
Swiss High-Torque Quartz (3J, EOL)
Ronda 505.24
Case
7 specsCrystal & Dial
2 specsMovement
1 specsPricing
1 specsReviews
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 its legibility, day and night, due to tritium gas tubes on every hour marker. Its small, lightweight 34mm case is noted as comfortable and ideal for smaller wrists, avoiding the bulk of larger watches. The Swiss High-Torque Quartz movement is appreciated for its ruggedness, accuracy, and lack of winding requirement. Some owners find the $350-420 price point a bit high, and one enthusiast considers the 30m water resistance a drawback. Overall, owners rate the Marathon GPQ (General Purpose Quartz) Field Watch highly for its exceptional legibility and comfortable, practical design.
Owners widely praise the Slow Watches Jo series for its unique, elegant design and conversation-starting appeal, frequently highlighting the simple and organizing 24-hour dial and single hand. Many appreciate its vintage feel and the compliments it garners. Some owners find the small indices and digits require reading glasses, and precise time-telling can be challenging, offering only approximate time to the nearest 10 minutes without looking directly at the dial. The provided leather strap is described as sticky and stretchy by one owner, who prefers an alternative bracelet. One owner notes significant scratches and pits in the glass. On balance, owners rate the Slow Watches Jo series highly for its unique concept and design that encourages a slower pace of life.
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