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.

Lum-Tec Solar Marine at true scale

Solar Marine

Marathon TSAR (Tritium Search & Rescue) Diver's Quartz at true scale

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

$595

lowest

$1,550

Movement

Seiko VS42

Swiss High-Torque Quartz

Case

4 specs
Diameter
39mm
46mm
Thickness
10.7mm
14mm
Lug-to-Lug
43.5mm
48mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
n/a
Black

Movement

2 specs
Caliber
Seiko VS42
Swiss High-Torque Quartz
Type
Solar
Quartz

Pricing

1 specs
MSRP
$595
$1,550
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Lum-Tec Solar Marine

Owners widely praise the Lum-Tec Solar Marine for its exceptional lume, rugged build quality, and comfortable 39mm wearability, with some noting it wears smaller than its stated size. The solar quartz movement is appreciated for its accuracy and minimal maintenance, and the finishing is consistently described as fantastic, with no reported misalignments. However, some owners find the price high for a solar quartz watch, and one owner anticipates the PVD coating will wear within a year. The second hand's lume is also noted to fade faster than the dial markers. On balance, owners and reviewers rate the Lum-Tec Solar Marine highly for its outstanding lume and tool-watch utility at the price.

Marathon TSAR (Tritium Search & Rescue) Diver's Quartz

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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