Side by side

Bremont Altitude ChronographvsBremont Supermarine 300M

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

Altitude Chronograph
BremontAltitude Chronograph
MSRP $6,300
Supermarine 300M
BremontSupermarine 300M
MSRP $3,550

At a glance

9 of 29 specs differ
Diameter
Altitude Chronograph42mm
Supermarine 300M40mm
Power Reserve
Altitude Chronograph40h
Supermarine 300M40h
Water Resistance
Altitude Chronograph100m
Supermarine 300M300m
MSRP
Altitude Chronograph$6,300
Supermarine 300M$3,550

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
42mm
40mm
Thickness
14.7mm
12mm
Lug Width
14.7mm
20mm
Material
316L Stainless Steel (DLC coated)
904L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

1 specs
Dial Color
Silver
Green

Movement

1 specs
Caliber
BE-50AE
BE-92AE

Pricing

1 specs
MSRP
$6,300
$3,550

Follow this matchup

Get a note when Bremont Altitude Chronograph vs Bremont Supermarine 300M 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 Altitude Chronograph

Owners note faint marks on the case sides and back, with minor wear and creasing on the strap. Reviewers flag the "DANGER EJECTION SEAT" wordmark on the dial as a divisive design choice that disrupts the MB series' usual stark tone, though they praise the improved smoothness and click precision of the Roto Click rotating bezel. On balance, the Bremont Altitude Chronograph elicits mixed reactions, with design elements like the dial text being a point of contention for 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.

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.