Side by side

Bremont Supermarine 300MvsHamilton Khaki Aviation X-Wind Day Date 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 X-Wind Day Date Auto
HamiltonKhaki Aviation X-Wind Day Date Auto
MSRP $1,375

At a glance

10 of 29 specs differ
Diameter
Supermarine 300M40mm
Khaki Aviation X-Wind Day Date Auto45mm
Power Reserve
Supermarine 300M40h
Khaki Aviation X-Wind Day Date Auto80h
Water Resistance
Supermarine 300M300m
Khaki Aviation X-Wind Day Date Auto100m
MSRP
Supermarine 300M$3,550
Khaki Aviation X-Wind Day Date Auto$1,375

Full specifications

Case

7 specs
Category
Diver
Pilot
Diameter
40mm
45mm
Thickness
12mm
12.8mm
Lug-to-Lug
46mm
Lug Width
20mm
22mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Movement

2 specs
Caliber
BE-92AE
H-30
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$3,550
$1,375

Follow this matchup

Get a note when Bremont Supermarine 300M vs Hamilton Khaki Aviation X-Wind Day Date Auto gets more votes, a community discussion, or a price drop. No account needed.

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 X-Wind Day Date Auto

Owners widely praise the Hamilton Khaki Aviation X-Wind Day Date Auto for its value, technical aesthetic, and versatile wearability with straps. Reviewers and owners alike highlight its excellent legibility, bold Arabic numerals, and the appeal of its pilot watch design, with many appreciating the 80-hour power reserve. Some owners find the crosswind calculation functions unnecessary, and there are mixed views on the dial's font usage and color matching. Lume is frequently noted as weak, and some find the size large or the left-handed crown and pusher setup uncomfortable. Accuracy figures range from gaining 6 seconds in a few days to approximately -6 seconds per day. Overall, owners rate the Hamilton Khaki Aviation X-Wind Day Date Auto highly for its impressive value and functional pilot watch design.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.