Side by side

Bremont Altitude Perpetual Calendar GMTvsHamilton Khaki Aviation Air Race Auto

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

Altitude Perpetual Calendar GMT
BremontAltitude Perpetual Calendar GMT
MSRP $38,450
Khaki Aviation Air Race Auto
HamiltonKhaki Aviation Air Race Auto
MSRP $845

At a glance

11 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Khaki Aviation Air Race Auto38mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Khaki Aviation Air Race Auto80h
Water Resistance
Altitude Perpetual Calendar GMT
Khaki Aviation Air Race Auto50m
MSRP
Altitude Perpetual Calendar GMT$38,450
Khaki Aviation Air Race Auto$845

Full specifications

Case

7 specs
Category
GMT
Pilot
Diameter
42mm
38mm
Thickness
12.65mm
10.8mm
Lug-to-Lug
46mm
Lug Width
22mm
19mm
Material
Titanium
Stainless Steel
Water Resistance
50m

Crystal & Dial

1 specs
Dial Color
Blue
Black

Movement

2 specs
Caliber
H-10
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$38,450
$845

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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.

Bremont Altitude Perpetual Calendar GMT

The Bremont Altitude Perpetual Calendar GMT is a highly exclusive piece, with one owner noting its $44,000 price point raises questions about its target audience and suggesting it may be a limited production showpiece. Reviewers highlight its refined Trip-Tick case, now featuring softer curves, a 42mm diameter, and a 12.23mm thickness in grade 2 titanium, though the oversized crowns are flagged as a potential drawback. Overall, owners and reviewers acknowledge the Bremont Altitude Perpetual Calendar GMT as a distinctive, albeit niche, high-complication offering with a notable case refinement.

Hamilton Khaki Aviation Air Race Auto

Owners widely praise the Hamilton Khaki Aviation Air Race Auto for its legibility and practicality, with some appreciating its countdown bezel and GMT pointer. However, opinions on its design are split, with some calling it a "Frankenstein" and disliking the skeleton hands, while others find the hands suitable for a pilot watch. One owner notes the lume is underwhelming and the 44mm size may be too large for some wrists. The original strap is also described as uncomfortable and prone to water stains. On balance, owners value the Hamilton Khaki Aviation Air Race Auto for its legibility and practical features, despite a polarizing design and some comfort concerns.

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