Side by side

Bremont Supermarine 300MvsHamilton Khaki Aviation Khaki Pilot GMT Auto

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Khaki Aviation Khaki Pilot GMT Auto
HamiltonKhaki Aviation Khaki Pilot GMT Auto
MSRP $1,575

At a glance

11 of 29 specs differ
Diameter
Supermarine 300M40mm
Khaki Aviation Khaki Pilot GMT Auto44mm
Power Reserve
Supermarine 300M40h
Khaki Aviation Khaki Pilot GMT Auto50h
Water Resistance
Supermarine 300M300m
Khaki Aviation Khaki Pilot GMT Auto100m
MSRP
Supermarine 300M$3,550
Khaki Aviation Khaki Pilot GMT Auto$1,575

Full specifications

Case

7 specs
Category
Diver
Pilot
Diameter
40mm
44mm
Thickness
12mm
12.1mm
Lug-to-Lug
46mm
Lug Width
20mm
22mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Green
Black

Movement

2 specs
Caliber
BE-92AE
2893-2
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$3,550
$1,575

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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 Supermarine 300M

The Bremont Supermarine 300M is praised for its comfortable 40mm and 42mm case sizes, with owners noting the 42mm wears well on smaller wrists due to its lug design. One owner highlights the 13mm thinness of the 40mm case, considered compact for a 300m diver. The watch is priced at $1375. On balance, owners and reviewers appreciate the Bremont Supermarine 300M for its wearability and compact dimensions, especially for a dive watch.

Hamilton Khaki Aviation Khaki Pilot GMT Auto

Owners widely praise the Hamilton Khaki Aviation Khaki Pilot GMT Auto as an underrated, value-packed GMT with good finishing and a sapphire crystal, powered by an ETA 2893-2 movement. Some find the GMT hand obscures legibility, while others consider it legible and appreciate the slim design, though its 44mm size is noted as large by some. One owner describes it as functioning more as an "office GMT" than a traveler's GMT. On balance, owners and reviewers rate the Hamilton Khaki Aviation Khaki Pilot GMT Auto highly for its excellent value and GMT functionality.

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