Side by side

Airain Watches Type 20vsOak & Oscar The Humboldt GMT

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

What people say

Owners + reviewers, side by side

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

Airain Watches Type 20

Owners widely praise the Airain Watches Type 20 for its beautiful and faithful recreation of a classic model, highlighting its easily wearable 39mm case sizing and the pleasure of its manual winding movement. Reviewers note the pleasing "old radium" lume and the vintage military watch experience offered by modern construction. Some owners find the design timeless and clean, with one owner calling it "just perfect." However, reviewers point out that the vintage-style sapphire crystal can add glare, and the case is still considered a bit thick despite the manual movement. Strap hardware required swapping between included straps for one reviewer. One owner noted a small scratch on the crystal near the 12-hour mark. The movement's appearance is considered less attractive than many hand-wound chronographs by one reviewer. On balance, owners and reviewers rate the Airain Watches Type 20 highly for its faithful vintage design and enjoyable manual winding action.

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.

At a glance

18 of 29 specs differ
Diameter
Type 2039mm
The Humboldt GMT39.5mm
Power Reserve
Type 2063h
The Humboldt GMT56 hoursh
Water Resistance
Type 2050m
The Humboldt GMT200m
MSRP
Type 20$3,650
The Humboldt GMT$2,175

Full specifications

Case

9 specs
Category
GMT
Diameter
39mm
39.5mm
Thickness
14.77mm
12.5mm
Lug-to-Lug
47.7mm
46.8mm
Lug Width
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Brushed
Water Resistance
50m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

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

Movement

4 specs
Caliber
AM2
Sellita SW330-2
Type
Manual
Automatic
Beat Rate
28,800 vph
4 vph
Power Reserve
63h
56 hoursh

Pricing

1 specs
MSRP
$3,650
$2,175
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