Side by side

Bremont Supermarine 300MvsLorier Astra Cosmic Blue

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Astra Cosmic Blue
LorierAstra Cosmic Blue
MSRP $499

At a glance

9 of 29 specs differ
Diameter
Supermarine 300M40mm
Astra Cosmic Blue36mm
Power Reserve
Supermarine 300M40h
Astra Cosmic Blue40h
Water Resistance
Supermarine 300M300m
Astra Cosmic Blue50m
MSRP
Supermarine 300M$3,550
Astra Cosmic Blue$499

Full specifications

Case

6 specs
Category
Diver
Field
Diameter
40mm
36mm
Thickness
12mm
Lug Width
20mm
18mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

1 specs
Dial Color
Green
Blue

Movement

1 specs
Caliber
BE-92AE

Pricing

1 specs
MSRP
$3,550
$499

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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.

Lorier Astra Cosmic Blue

Owners widely praise the Lorier Astra Cosmic Blue for its beautiful, vintage 1960s aesthetic and comfortable 36mm size, fitting well even after initial adjustment. Some community members appreciate its clean lines and attractive design, though a few wish for more variation in the brand's case and bracelet designs across its models. Overall, owners rate the Lorier Astra Cosmic Blue highly for its stunning, dressy vintage appeal and wearability.

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