Side by side

Oak & Oscar The Humboldt GMTvsZelos Skyraider 40 Skeleton

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
Skyraider 40 Skeleton
ZelosSkyraider 40 Skeleton
MSRP $1,999

At a glance

17 of 29 specs differ
Diameter
The Humboldt GMT39.5mm
Skyraider 40 Skeleton40mm
Power Reserve
The Humboldt GMT56 hoursh
Skyraider 40 Skeleton40h
Water Resistance
The Humboldt GMT200m
Skyraider 40 Skeleton50m
MSRP
The Humboldt GMT$2,175
Skyraider 40 Skeleton$1,999

Full specifications

Case

8 specs
Category
GMT
Skeleton
Diameter
39.5mm
40mm
Thickness
12.5mm
8.2mm
Lug-to-Lug
46.8mm
40mm
Material
316L Stainless Steel
Titanium
Finish
Brushed
Brushed and polished
Water Resistance
200m
50m
Caseback
Solid screw-down
Solid

Crystal & Dial

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

Movement

4 specs
Caliber
Sellita SW330
Swiss Skeletonised Marvin 700
Type
Automatic
Manual
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h

Pricing

1 specs
MSRP
$2,175
$1,999

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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.

Zelos Skyraider 40 Skeleton

The Zelos Skyraider 40 Skeleton is noted for its skeletonized dial and the use of BGW9 and C3 Super-LumiNova for legibility. It is powered by a manual-wind ETA 6498 movement, offering a 44-hour power reserve. On balance, the Zelos Skyraider 40 Skeleton is seen as a cool-looking option, though availability is a factor.

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