Marathon TSAR (Tritium Search & Rescue) Diver's QuartzvsProTek Watches Model PT1015 USMC
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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.

TSAR (Tritium Search & Rescue) Diver's Quartz

Model PT1015 USMC
Diameter
46mm
42mm
Lug-to-Lug
48mm
n/a
Thickness
14mm
13.9mm
lowest
Water Resistance
300m
300m
MSRP
$1,550
$525
lowest
Movement
Swiss High-Torque Quartz
Miyota 2S60
Case
5 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Marathon TSAR (Tritium Search & Rescue) Diver's Quartz owners widely praise its high quality, extreme legibility, and bright tritium tubes that glow without needing to charge. The simple, functional dial layout and ISO 6425 certification are also noted strengths. One owner reports owning a TSAR for nearly 15 years with no problems and found Marathon's service experience to be great. Some owners mention the 41mm TSAR wears small and has a field watch aesthetic, while others note the crown can dig into the wrist. The tritium tubes in the hands provide excellent brightness in the dark. On balance, owners rate the Marathon TSAR (Tritium Search & Rescue) Diver's Quartz highly for its exceptional tritium lume and robust, legible design.
Owners widely praise the ProTek Watches Model PT1015 USMC for its exceptional tritium lume and the lightweight feel of its carbon composite case. Reviewers and owners alike highlight its robust, utilitarian design, noting the solid-feeling 60-click bezel with no back-play and the ease of use provided by the screw-down crown's rubber grip. The watch's official USMC designation is considered a cool factor by some. On balance, owners and reviewers rate the ProTek Watches Model PT1015 USMC highly for its rugged build and excellent tritium illumination at its price point.
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