CWC TamarvsMarathon 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.

Tamar

TSAR (Tritium Search & Rescue) Diver's Quartz
Diameter
41mm
46mm
Lug-to-Lug
47mm
lowest
48mm
Thickness
n/a
14mm
Water Resistance
300m
300m
MSRP
$749
lowest
$1,550
Movement
Ronda 517
Swiss High-Torque Quartz
Case
4 specsCrystal & Dial
2 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely appreciate the CWC Tamar for its historical significance and vintage aesthetic, with the Ronda quartz movement and fixed spring bars being considered acceptable. However, some owners feel the price is not justified for a basic quartz watch with average finishing and faux indices, with one noting a case polish mark and chip after a few months. The design elements referencing the Welsh flag, including colors and a dragon motif, suggest a specific target audience. On balance, owners value the CWC Tamar for its historical connection and unique design, though some question its value proposition at the 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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