Dan Henry 1975vsMarathon 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.

1975

TSAR (Tritium Search & Rescue) Diver's Quartz
Diameter
39mm
46mm
Lug-to-Lug
42mm
lowest
48mm
Thickness
10.5mm
lowest
14mm
Water Resistance
150m
300m
highest
MSRP
$310
lowest
$1,550
Movement
Automatic
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.
Owners widely praise the Dan Henry 1975 for its attractive dial, orange accents, bubble crystal, and thin, wearable 39mm case, offering excellent value. Reviewers note its retro styling and boxed sapphire crystal, while some owners highlight its fantastic lume and impressive inner rotating crystal bezel. One owner found the black sapphire bezel can wash out in certain light, and another user reported weak lume on their example. The watch utilizes an automatic movement, and accuracy figures range from -10/+30 seconds per day. Overall, owners and reviewers rate the Dan Henry 1975 highly for its retro styling and exceptional value.
The vintage aesthetic and color options of the dial are a shared strength. The lume performance is a noted weakness. Reviewers disagree on whether the watch's design is ultimately a hit or a miss.
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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