Side by side

Oak & Oscar The Humboldt GMTvsLum-Tec Solar Marine

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

The Humboldt GMT
Oak & OscarThe Humboldt GMT
MSRP $2,175
Solar Marine
Lum-TecSolar Marine
MSRP $463

At a glance

16 of 29 specs differ
Diameter
The Humboldt GMT39.5mm
Solar Marine39mm
Power Reserve
The Humboldt GMT56 hoursh
Solar Marine40h
Water Resistance
The Humboldt GMT200m
Solar Marine300m
MSRP
The Humboldt GMT$2,175
Solar Marine$463

Full specifications

Case

8 specs
Category
GMT
Diver
Diameter
39.5mm
39mm
Thickness
12.5mm
10.7mm
Lug-to-Lug
46.8mm
43.5mm
Material
316L Stainless Steel
316L Stainless Steel (DLC coated)
Finish
Brushed
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid screw-down
Solid

Crystal & Dial

4 specs
Crystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
White
Steel
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW330
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h

Pricing

1 specs
MSRP
$2,175
$463

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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.

Oak & Oscar The Humboldt GMT

Oak & Oscar The Humboldt GMT owners widely praise its exceptional accuracy, often running at or near 0 seconds per day, and its comfortable wearability with subtle design details. The construction quality for the price point, sandwich lume, and anti-magnetic properties are also highlighted. Some owners find the bracelet sizing adjustment slightly awkward, and one noted the lume could be brighter. Overall, owners rate the Oak & Oscar The Humboldt GMT highly for its accuracy and comfortable wearability.

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.

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