Side by side

Hamilton Khaki Aviation Converter AutovsLongines HYDROCONQUEST GMT

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

Khaki Aviation Converter Auto
HamiltonKhaki Aviation Converter Auto
MSRP $1,345
HYDROCONQUEST GMT
LonginesHYDROCONQUEST GMT
MSRP $3,350

At a glance

10 of 29 specs differ
Diameter
Khaki Aviation Converter Auto42mm
HYDROCONQUEST GMT41mm
Power Reserve
Khaki Aviation Converter Auto80h
HYDROCONQUEST GMT40h
Water Resistance
Khaki Aviation Converter Auto100m
HYDROCONQUEST GMT300m
MSRP
Khaki Aviation Converter Auto$1,345
HYDROCONQUEST GMT$3,350

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
42mm
41mm
Thickness
10.87mm
12.9mm
Lug-to-Lug
46mm
49.4mm
Lug Width
20mm
21mm
Water Resistance
100m
300m

Crystal & Dial

1 specs
Dial Color
Black
Green

Movement

2 specs
Caliber
H-10
L844.5
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,345
$3,350

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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 Converter Auto

The Hamilton Khaki Aviation Converter Auto is recognized for its classic pilot's watch aesthetic, featuring a functional bi-directional slide rule bezel with a mineral glass insert for scratch protection. Reviewers highlight its instrument-heavy design, well-balanced dial, and robust 42mm or 44mm case with a satin-brushed finish and polished accents. The watch is equipped with applied indexes and hands filled with Super-LumiNova for legibility, and a flat sapphire crystal with double anti-reflective coating. The automatic models utilize the H-10 movement, offering a 60-hour power reserve, while the chronograph version uses the H-21-Si movement. Overall, reviewers praise the Hamilton Khaki Aviation Converter Auto for its attractive, functional pilot's watch design and robust build at its price point.

Longines HYDROCONQUEST GMT

Owners widely praise the Longines HYDROCONQUEST GMT for its excellent finishing, smooth winding action, and overall value, with some finding its build quality and colorways superior to higher-priced competitors. Reviewers and owners alike note its robustness as a traveler's dive watch with a true GMT movement. Some owners find the round markers at 6 and 9 disrupt dial symmetry, and the GMT hour markers are described as tiny and difficult to read. The date wheel can be mismatched on certain dial colors, and the bracelet clasp is noted as sharp by one reviewer. While some owners wish for a smaller case size, others find the 41mm comfortable. The bezel action is flagged as having bounce-back by one owner, though the brushed finish effectively hides wear. Overall, owners and reviewers rate the Longines HYDROCONQUEST GMT highly for its robust build and excellent value proposition.

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