Lum-Tec Solar MarinevsLongines HydroConquest

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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

Longines HydroConquest at true scale

HydroConquest

Diameter

39mm

42mm

Lug-to-Lug

43.5mm

n/a

Thickness

10.7mm

n/a

Water Resistance

300m

300m

MSRP

$463

lowest

$1,600

Movement

Automatic

Quartz

Case

7 specs
Diameter
39mm
42mm
Thickness
10.7mm
n/a
Lug-to-Lug
43.5mm
n/a
Lug Width
20mm
n/a
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Finish
n/a
Brushed and polished
Caseback
n/a
Solid

Crystal & Dial

4 specs
Dial Color
Steel
Green
Texture
n/a
Sandblasted
Indices
n/a
Applied
Lume
None
Super-LumiNova

Movement

2 specs
Type
Automatic
Quartz
Complications
None
Date

Pricing

1 specs
MSRP
$463
$1,600
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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 all-black diver design, excellent lume, and rugged, tank-like build. This 39mm watch is noted as a great smaller option, fitting a 7-inch wrist perfectly and suitable for extensive water activities. One owner cautions that the PVD coating may wear and chip within a year. On balance, owners rate the Lum-Tec Solar Marine highly for its rugged build and excellent lume in a compact dive watch package.

Longines HydroConquest

Owners widely praise the Longines HydroConquest for its superb finishing, comparable to higher-end competitors, and its value proposition. The dial is frequently lauded for its vibrancy and legibility, with specific appreciation for the glossy lacquer and sunburst finishes. Wearability is a strong point, with the 39mm size noted as slim and comfortable, though opinions on the bracelet's refinement are mixed, with some finding it less premium than alternatives and lacking tool-less micro-adjustment, while others praise its comfort and fit. Some owners find the design derivative of other dive watches, while others see it as a beautiful and refined evolution. Accuracy is generally good, with one owner reporting approximately -2 seconds per day. The quartz variant is noted for its lower price point and cost of ownership. Overall, owners rate the Longines HydroConquest highly for its excellent finishing and value at the price point.

From video reviewers

The Longines HydroConquest is praised for its design and value proposition. Reviewers question the value compared to alternatives.