Side by side

Bremont SupernovavsHamilton Khaki Aviation Converter Auto Chrono

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

Supernova
BremontSupernova
MSRP $8,250
Khaki Aviation Converter Auto Chrono
HamiltonKhaki Aviation Converter Auto Chrono
MSRP $2,445

At a glance

10 of 29 specs differ
Diameter
Supernova41mm
Khaki Aviation Converter Auto Chrono44mm
Power Reserve
Supernova40h
Khaki Aviation Converter Auto Chrono60h
Water Resistance
Supernova100m
Khaki Aviation Converter Auto Chrono100m
MSRP
Supernova$8,250
Khaki Aviation Converter Auto Chrono$2,445

Full specifications

Case

6 specs
Category
Chronograph
Pilot
Diameter
41mm
44mm
Thickness
14.4mm
14.6mm
Lug-to-Lug
46mm
Lug Width
14.4mm
22mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel

Crystal & Dial

1 specs
Dial Color
Chronograph Bracelet
Black

Movement

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

Pricing

1 specs
MSRP
$8,250
$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.

Bremont Supernova

The Bremont Supernova is praised for its new ENG375 movement, big date, and power reserve indicator, with its 40mm steel case featuring mixed finishing and an integrated bracelet. Owners note good but not great lume, well-balanced proportions, and a premium feel for its price, despite a 173-gram weight. Some community members find the design derivative and the £8,000 price tag overly optimistic, with mixed views on the date window and crown guard. The proprietary Trip-Tick case construction offers shock protection, and the movement provides a 65-hour power reserve. Overall, owners and reviewers highlight the integrated bracelet and proprietary movement as key strengths of the Bremont Supernova.

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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