Lum-Tec Solar MarinevsMarathon TSAR (Tritium Search & Rescue) Diver's Quartz
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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.

Solar Marine

TSAR (Tritium Search & Rescue) Diver's Quartz
Diameter
39mm
46mm
Lug-to-Lug
43.5mm
lowest
48mm
Thickness
10.7mm
lowest
14mm
Water Resistance
300m
300m
MSRP
$545
lowest
$1,550
Movement
Seiko VS42
Swiss High-Torque Quartz
Case
4 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Lum-Tec Solar Marine is widely praised for its excellent lume, robust build quality, and fantastic finishing, making it a great grab-and-go tool watch. Owners appreciate its solar-powered quartz movement for low-maintenance performance and its comfortable 39mm case size, though some feel it wears smaller. One owner notes that the PVD coating may wear and chip over time. The Lum-Tec Solar Marine is highly regarded for its exceptional lume and quality finishing at its price point.
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.
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