Side by side

Hamilton Khaki Aviation Converter AutovsYema Wristmaster Slim Small Seconds CMM.29

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
Wristmaster Slim Small Seconds CMM.29
YemaWristmaster Slim Small Seconds CMM.29
MSRP $2,249

At a glance

7 of 29 specs differ
Diameter
Khaki Aviation Converter Auto42mm
Wristmaster Slim Small Seconds CMM.2939mm
Power Reserve
Khaki Aviation Converter Auto80h
Wristmaster Slim Small Seconds CMM.2940h
Water Resistance
Khaki Aviation Converter Auto100m
Wristmaster Slim Small Seconds CMM.29100m
MSRP
Khaki Aviation Converter Auto$1,345
Wristmaster Slim Small Seconds CMM.29$2,249

Full specifications

Case

4 specs
Category
Pilot
Dress
Diameter
42mm
39mm
Thickness
10.87mm
9mm
Lug-to-Lug
46mm

Movement

2 specs
Caliber
H-10
Yema CMM.29
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,345
$2,249

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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.

Yema Wristmaster Slim Small Seconds CMM.29

Owners widely praise the Yema Wristmaster Slim Small Seconds CMM.29 for its slim 9.5mm case, unique nature-inspired dial, and brushed steel finish. The micro-rotor movement is noted for its 4Hz beat rate and 42-hour power reserve, regulated to -/+ 10 seconds per day. Some owners report concerns regarding the movement and warranty process, while a reviewer questioned the value proposition at its price point and noted minor finishing inconsistencies on a prototype. On balance, the Yema Wristmaster Slim Small Seconds CMM.29 is highly regarded by owners for its distinctive design and comfortable wearability.

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