Side by side

Bremont Supermarine 300MvsKobold Phantom Black Ops

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

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.

Kobold Phantom Black Ops

Owners find the Kobold well-constructed overall, with a serviceable ETA 7750 movement, though one notes the subdials and day/date indicator read surprisingly subdued on the dial. The brand draws mixed feedback on value: multiple owners cite overpricing relative to specs and report poor customer service and managerial issues, though one owner had a positive repair experience. On balance, the Kobold's solid build quality is offset by widespread concern over pricing and inconsistent customer support.

At a glance

8 of 29 specs differ
Diameter
Supermarine 300M40mm
Phantom Black Ops41mm
Power Reserve
Supermarine 300M
Phantom Black Ops
Water Resistance
Supermarine 300M300m
Phantom Black Ops300m
MSRP
Supermarine 300M$3,550
Phantom Black Ops$6,450

Full specifications

Case

5 specs
Category
Diver
Diameter
40mm
41mm
Thickness
12mm
17mm
Lug-to-Lug
0mm
Material
904L Stainless Steel
Stainless Steel

Crystal & Dial

1 specs
Dial Color
Green

Movement

1 specs
Caliber
Bremont BE-92AE
Valjoux 7750

Pricing

1 specs
MSRP
$3,550
$6,450
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