Side by side

Bremont Supermarine 300MvsZelos Hammerhead V3 300m Bronze

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Hammerhead V3 300m Bronze
ZelosHammerhead V3 300m Bronze
MSRP $449

At a glance

9 of 29 specs differ
Diameter
Supermarine 300M40mm
Hammerhead V3 300m Bronze44mm
Power Reserve
Supermarine 300M40h
Hammerhead V3 300m Bronze40h
Water Resistance
Supermarine 300M300m
Hammerhead V3 300m Bronze300m
MSRP
Supermarine 300M$3,550
Hammerhead V3 300m Bronze$449

Full specifications

Case

5 specs
Diameter
40mm
44mm
Thickness
12mm
13mm
Lug-to-Lug
44mm
Lug Width
20mm
22mm
Material
904L Stainless Steel
Titanium

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Green
Bronze - Frost

Movement

1 specs
Caliber
BE-92AE
Seiko NH35

Pricing

1 specs
MSRP
$3,550
$449

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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.

Zelos Hammerhead V3 300m Bronze

Owners widely praise the Zelos Hammerhead V3 300m Bronze for its distinctive 70s-inspired design, slim 13.5mm case, and improved lume, offering a sophisticated timepiece at an accessible price point starting at $349. The unique dial is noted for evoking an otherworldly feeling, and the comfortable bracelet features on-the-fly micro-adjustment. Some enthusiasts express frustration with shipping delays and a desire to see the watch on a wrist before purchase. One owner flags that the clasp material could be more scratch-resistant, and resizing bracelet pins can be stubborn. On balance, owners rate the Zelos Hammerhead V3 300m Bronze highly for its unique design and build quality at its price point.

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