Side by side

Lum-Tec Solar MarinevsSpinnaker Dumas GMT

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

Solar Marine
Lum-TecSolar Marine
MSRP $463
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

9 of 29 specs differ
Diameter
Solar Marine39mm
Dumas GMT44mm
Power Reserve
Solar Marine40h
Dumas GMT40h
Water Resistance
Solar Marine300m
Dumas GMT300m
MSRP
Solar Marine$463
Dumas GMT$399

Full specifications

Case

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

Crystal & Dial

1 specs
Dial Color
Steel
Blue

Movement

1 specs
Caliber
Seiko NH34A

Pricing

1 specs
MSRP
$463
$399

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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

Lum-Tec Solar Marine owners praise its all-black diver design, excellent lume, and rugged, tank-like build. One owner finds it a perfect fit for a 7-inch wrist and the most frequently worn watch despite its smaller size. However, one owner cautions that the PVD coating will wear and chip within a year, impacting its appearance, and another finds the price high for a solar quartz watch with added lume. On balance, owners rate the Lum-Tec Solar Marine highly for its robust design and excellent lume, despite concerns about PVD durability and value proposition.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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