Side by side

Bremont Supermarine 300MvsHamilton American Classic Intra-Matic Chronograph H

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550

At a glance

10 of 29 specs differ
Diameter
Supermarine 300M40mm
American Classic Intra-Matic Chronograph H40mm
Power Reserve
Supermarine 300M40h
American Classic Intra-Matic Chronograph H60h
Water Resistance
Supermarine 300M300m
American Classic Intra-Matic Chronograph H100m
MSRP
Supermarine 300M$3,550
American Classic Intra-Matic Chronograph H$2,495

Full specifications

Case

5 specs
Category
Diver
Chronograph
Thickness
12mm
14.35mm
Lug-to-Lug
46mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Green
White

Movement

3 specs
Caliber
BE-92AE
H-51
Type
Automatic
Manual
Power Reserve
40h
60h

Pricing

1 specs
MSRP
$3,550
$2,495

Follow this matchup

Get a note when Bremont Supermarine 300M vs Hamilton American Classic Intra-Matic Chronograph H 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 American Classic Intra-Matic Chronograph H

The Hamilton American Classic Intra-Matic Chronograph H is widely praised for its attractive vintage-inspired design, clean dial legibility, and satisfying manual-wind experience. Owners and reviewers highlight its retro charm, often described as elegant and classy with a 1960s aesthetic, and its well-balanced panda or reverse panda dial configurations. The H-51 hand-wound movement is noted for its torquey feel and a 60-hour power reserve, with timekeeping reported around +3 seconds per day. The 40mm case size is considered welcome, though its 14.35mm thickness is frequently mentioned as being on the thicker side for a hand-wound chronograph, despite wearing well on the wrist. Some owners expressed a desire for a three-subdial layout, and one noted the OEM strap was utilitarian, while another found the rotor audible and the date setting unusual. The Hamilton American Classic Intra-Matic Chronograph H is priced around $2,045 to $2,095 on bracelet.

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.