Side by side

Lum-Tec Solar MarinevsSpinnaker Dumas Automatic

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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What people say

Owners + reviewers, side by side

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

Lum-Tec Solar Marine

The Lum-Tec Solar Marine earns consistent owner praise for its all-black diver design, exceptional lume visibility, and rugged field-ready build quality. Owners highlight its comfort and wearability despite the compact 39mm case, with one long-term owner noting it has become their most-worn piece. The solar VS42A movement and robust construction earn respect for daily-use reliability. Caveats center on durability: the PVD coating will wear and chip within a year of regular use, and pricing for a solar quartz model with lume remains a point of contention—the brand itself created a sister company partly to address cost concerns. On balance, the Solar Marine resonates with owners seeking a rugged, comfortable all-black diver with practical solar power, though the premium pricing and coating durability expectations temper enthusiasm.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

At a glance

10 of 29 specs differ
Diameter
Solar Marine39mm
Dumas Automatic44mm
Power Reserve
Solar Marine
Dumas Automatic
Water Resistance
Solar Marine300m
Dumas Automatic300m
MSRP
Solar Marine$595
Dumas Automatic$239

Full specifications

Case

6 specs
Category
Diver
Diameter
39mm
44mm
Thickness
10.7mm
15mm
Lug-to-Lug
43.5mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Blue

Movement

2 specs
Caliber
Seiko VS42
Seiko NH35
Type
Solar
Automatic

Pricing

1 specs
MSRP
$595
$239
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