Side by side

Bremont Altitude Perpetual Calendar GMTvsHamilton Khaki Aviation Pilot Pioneer Mechanical

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

At a glance

13 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Khaki Aviation Pilot Pioneer Mechanical36mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Khaki Aviation Pilot Pioneer Mechanical80h
Water Resistance
Altitude Perpetual Calendar GMT
Khaki Aviation Pilot Pioneer Mechanical100m
MSRP
Altitude Perpetual Calendar GMT$38,450
Khaki Aviation Pilot Pioneer Mechanical$975

Full specifications

Case

7 specs
Category
GMT
Pilot
Diameter
42mm
36mm
Thickness
12.65mm
9.95mm
Lug-to-Lug
46mm
Lug Width
22mm
18mm
Material
Titanium
Stainless Steel
Water Resistance
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Mineral
Dial Color
Blue
Black

Movement

3 specs
Caliber
H-50
Type
Automatic
Manual
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$38,450
$975

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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 Pilot Pioneer Mechanical

Owners widely praise the Hamilton Khaki Aviation Pilot Pioneer Mechanical for its superior fit and finish, clean and unique design, and overall value, with one owner calling it a significant step up in build quality. The watch measures 36mm wide with a 41.7mm lug-to-lug and 12.8mm thickness. Some owners express concern over its mineral crystal, with one noting the bezel's detents are "kinda whatever." On balance, owners rate the Hamilton Khaki Aviation Pilot Pioneer Mechanical highly for its build quality and value proposition.

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