Marathon TSAR (Tritium Search & Rescue) Diver's QuartzvsMomentum Sea Quartz 30 Eclipse - Combined Listing
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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

Sea Quartz 30 Eclipse - Combined Listing
Diameter
46mm
42mm
Lug-to-Lug
48mm
n/a
Thickness
14mm
12.6mm
lowest
Water Resistance
300m
300m
MSRP
$1,550
$329
lowest
Movement
Swiss High-Torque Quartz
Seiko VS43
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.
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 Momentum Sea Quartz 30 Eclipse for its solid build, comfortable wearability, legibility, and value, with many noting its tank-like construction and attractive vintage-inspired design. The watch is frequently commended for its good lume, sapphire crystal, and overall fit and finish, with one owner reporting durability over eighteen months of use. The Seiko VS43 solar quartz movement powers the watch. Some owners are split on the second-hand alignment, with multiple reports of it hitting between markers, and a few find the bezel action stiff with some backplay or slipperiness. Overall, owners and reviewers rate the Momentum Sea Quartz 30 Eclipse highly for its fun, vintage-inspired dive watch experience at an affordable price.
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