Side by side

Bremont Supermarine 300MvsLongines HYDROCONQUEST

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
HYDROCONQUEST
LonginesHYDROCONQUEST
MSRP $2,350

At a glance

8 of 29 specs differ
Diameter
Supermarine 300M40mm
HYDROCONQUEST39mm
Power Reserve
Supermarine 300M40h
HYDROCONQUEST40h
Water Resistance
Supermarine 300M300m
HYDROCONQUEST300m
MSRP
Supermarine 300M$3,550
HYDROCONQUEST$2,350

Full specifications

Case

5 specs
Diameter
40mm
39mm
Thickness
12mm
12.2mm
Lug-to-Lug
48.1mm
Lug Width
20mm
19mm
Material
904L Stainless Steel
Stainless Steel

Crystal & Dial

1 specs
Dial Color
Green
Grey

Movement

1 specs
Caliber
BE-92AE
L888.5

Pricing

1 specs
MSRP
$3,550
$2,350

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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.

Longines HYDROCONQUEST

Owners widely praise the Longines HydroConquest's dial and finishing, with one owner finding it superior to a Rolex Submariner. The movement is noted as well-regulated, losing about 2 seconds per day. The watch is considered a versatile everyday or business-casual option, offering good value. However, owners criticize the bracelet for lacking tool-less micro-adjustment and describe winding the crown as a nuisance. Some in the line report tiny GMT markers that are difficult to read and the absence of a quick date adjust feature. Overall, owners rate the Longines HydroConquest highly for its finishing and value.

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