Side by side

Hamilton Khaki Aviation Pilot Pioneer Mechanical ChronovsOak & Oscar The Humboldt GMT SAR Edition

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

The Humboldt GMT SAR Edition
Oak & OscarThe Humboldt GMT SAR Edition
MSRP $2,950

At a glance

17 of 29 specs differ
Diameter
Khaki Aviation Pilot Pioneer Mechanical Chrono40mm
The Humboldt GMT SAR Edition39.5mm
Power Reserve
Khaki Aviation Pilot Pioneer Mechanical Chrono60h
The Humboldt GMT SAR Edition56 hoursh
Water Resistance
Khaki Aviation Pilot Pioneer Mechanical Chrono100m
The Humboldt GMT SAR Edition200m
MSRP
Khaki Aviation Pilot Pioneer Mechanical Chrono$2,445
The Humboldt GMT SAR Edition$2,950

Full specifications

Case

8 specs
Category
Pilot
GMT
Diameter
40mm
39.5mm
Thickness
14.35mm
12.5mm
Lug-to-Lug
50mm
46.8mm
Lug Width
22mm
20mm
Material
Stainless Steel
Grade 5 Titanium
Water Resistance
100m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

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

Movement

4 specs
Caliber
H-51-Si
Sellita SW330
Type
Manual
Automatic
Beat Rate
28,800 vph
4 vph
Power Reserve
60h
56 hoursh

Pricing

1 specs
MSRP
$2,445
$2,950

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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.

Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono

Owners and reviewers widely praise the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono for its authentic military design, attractive dial execution, and intriguing asymmetrical case, with many appreciating its utilitarian feel and vintage vibe. The hand-wound H-51-Si movement, offering a 60-hour power reserve and accuracy around +5 to +7 seconds per day, is also noted positively, as is the satisfying feel of manual winding. Some owners find the 36mm case size light and versatile, while others note it wears larger than its dimensions suggest. However, several sources point to the mineral crystal as a drawback compared to sapphire, and the lume is generally described as weak. The included strap is frequently criticized for being too long and uncomfortable, with many preferring it on a NATO strap. On balance, owners and reviewers rate the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono highly for its compelling vintage military aesthetic and solid value proposition.

Oak & Oscar The Humboldt GMT SAR Edition

Oak & Oscar The Humboldt GMT SAR Edition is praised for its anti-magnetic properties, sandwich lume dial, and overall construction quality for its price point. It features a brushed Grade 5 titanium case, a navy blue sandwich dial with an orange minute track and seconds hand, and a Sellita SW330 movement with a 56-hour power reserve. Minor drawbacks noted include bracelet sizing adjustment and lume brightness. On balance, owners and reviewers rate Oak & Oscar The Humboldt GMT SAR Edition highly for its robust construction and unique dial design at its price point.

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