Side by side

Bremont Altitude 39 DatevsBremont Supermarine 300M

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

Altitude 39 Date
BremontAltitude 39 Date
MSRP $4,250
Supermarine 300M
BremontSupermarine 300M
MSRP $3,550

At a glance

7 of 29 specs differ
Diameter
Altitude 39 Date39mm
Supermarine 300M40mm
Power Reserve
Altitude 39 Date40h
Supermarine 300M40h
Water Resistance
Altitude 39 Date100m
Supermarine 300M300m
MSRP
Altitude 39 Date$4,250
Supermarine 300M$3,550

Full specifications

Case

5 specs
Category
Pilot
Diver
Diameter
39mm
40mm
Thickness
11.19mm
12mm
Material
316L Stainless Steel (DLC coated)
904L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

1 specs
Dial Color
Silver
Green

Pricing

1 specs
MSRP
$4,250
$3,550

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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 Altitude 39 Date

Owners and reviewers widely praise the Bremont Altitude 39 Date as a sleek, legible, and everyday-suited pilot's watch, noting its comfortable 39mm 904L steel case and clean dial design. The La Joux-Perret G100 movement is recognized for its 68-hour power reserve and smooth winding feel. Some owners note the bracelet lacks micro-adjustments. On balance, the consensus is that the Bremont Altitude 39 Date is highly regarded for its refined finishing and wearability at 39mm.

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.

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