Side by side

Geckota Pioneer AutomaticvsHamilton Khaki Aviation Converter Auto Chrono

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

Pioneer Automatic
GeckotaPioneer Automatic
MSRP $299
Khaki Aviation Converter Auto Chrono
HamiltonKhaki Aviation Converter Auto Chrono
MSRP $2,445

At a glance

9 of 29 specs differ
Diameter
Pioneer Automatic42mm
Khaki Aviation Converter Auto Chrono44mm
Power Reserve
Pioneer Automatic40h
Khaki Aviation Converter Auto Chrono60h
Water Resistance
Pioneer Automatic100m
Khaki Aviation Converter Auto Chrono100m
MSRP
Pioneer Automatic$299
Khaki Aviation Converter Auto Chrono$2,445

Full specifications

Case

5 specs
Category
Field
Pilot
Diameter
42mm
44mm
Thickness
14mm
14.6mm
Lug-to-Lug
45mm
46mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

1 specs
Crystal
Domed Sapphire
Sapphire

Movement

2 specs
Caliber
NH35
H-21-Si
Power Reserve
40h
60h

Pricing

1 specs
MSRP
$299
$2,445

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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.

Geckota Pioneer Automatic

Owners widely praise the Geckota Pioneer Automatic for its retro-futuristic design, impressive lume, and unique dial finishing. The red dial variants are particularly favored for their brushed fumee appearance and vintage feel. Accuracy is noted as surprisingly good for an NH35 movement, though one owner reports +/- 20 seconds per day. The watch is considered a bargain by some at $259, while others find the $519 price for the NH35 movement in a 14mm thick case excessive. The 42mm cushion case is noted to wear large due to its lack of a prominent bezel. A minor phantom date position on the crown is reported, and the crystal is very reflective despite an anti-reflective coating. Some find the gold accents look a bit cheap, and one instance of a loose fleck of lume was observed. Overall, owners rate the Geckota Pioneer Automatic highly for its distinctive vintage aesthetic and value, particularly on sale.

Hamilton Khaki Aviation Converter Auto Chrono

The Hamilton Khaki Aviation Converter Auto Chrono is widely described as a large 44mm pilot's watch with a functional slide rule bezel. Reviewers note its well-finished steel case, featuring a robust satin-brushed finish with polished accents and chamfers, and a legible blue sunray dial with applied Super-LumiNova markers and old-fashioned hands. It is powered by the H-21-Si automatic chronograph movement, an upgraded ETA-based caliber with a silicon balance spring for anti-magnetic properties, offering a 60-hour power reserve. The watch is rated to 100m water resistance and features a bi-directional slide rule bezel with graduations printed under K1 mineral glass for scratch protection, which is easy to manipulate due to its deeply notched steel design. Some find the slide rule bezel complicated to use without a manual. One owner notes its character does not appeal as much as other slide bezel chronos.

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