Lum-Tec Solar MarinevsOntic Utility 40

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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

Ontic Utility 40 at true scale

Utility 40

Diameter

39mm

40mm

Lug-to-Lug

43.5mm

lowest

46mm

Thickness

10.7mm

lowest

12mm

Water Resistance

300m

300m

MSRP

$463

lowest

$799

Movement

Automatic

Solar

Case

5 specs
Diameter
39mm
40mm
Thickness
10.7mm
12mm
Lug-to-Lug
43.5mm
46mm
Lug Width
20mm
n/a
Material
316L Stainless Steel (DLC coated)
titanium

Crystal & Dial

1 specs
Dial Color
Steel
n/a

Movement

1 specs
Type
Automatic
Solar

Pricing

1 specs
MSRP
$463
$799
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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.

Ontic Utility 40

Owners widely appreciate the Ontic Utility 40's 40mm titanium case, which is hardened for scratch resistance, and its functional dial with ample Super-LumiNova. The solar-powered quartz movement is seen as a practical choice for reliability, though some prefer mechanical movements for tool watches. Some owners find the price high compared to other titanium solar dive watches. On balance, owners and reviewers rate the Ontic Utility 40 highly for its durable titanium construction and practical solar-quartz movement.