Side by side

Bremont Supermarine 300MvsPhoibos Leviathan

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Leviathan
PhoibosLeviathan
MSRP $309

At a glance

11 of 29 specs differ
Diameter
Supermarine 300M40mm
Leviathan45mm
Power Reserve
Supermarine 300M40h
Leviathan40h
Water Resistance
Supermarine 300M300m
Leviathan500m
MSRP
Supermarine 300M$3,550
Leviathan$309

Full specifications

Case

6 specs
Diameter
40mm
45mm
Thickness
12mm
15.5mm
Lug-to-Lug
54mm
Lug Width
20mm
22mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
500m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Green
Blue
Lume
None
Super-LumiNova

Movement

1 specs
Caliber
BE-92AE
NH 35

Pricing

1 specs
MSRP
$3,550
$309

Follow this matchup

Get a note when Bremont Supermarine 300M vs Phoibos Leviathan 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 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.

Phoibos Leviathan

Owners widely report the Phoibos Leviathan offers a vintage experience at an affordable price due to its proportions and conservative design. However, the watch is considered well-made and sturdy but quite heavy, with a 45mm x 54mm lug-to-lug case and a 15.5mm thickness, leading some owners to replace the stock band. On balance, owners rate the Phoibos Leviathan highly for its vintage feel and sturdy build at its price point.

From video reviewers

The watch features 500m water resistance and a Seiko NH35 automatic movement. The case size is a point of contention, with reviewers noting it is substantial and may overwhelm smaller wrists, while others highlight a 40mm case size as an improvement.

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.