Side by side

Bremont Supermarine 300MvsNivada Grenchen Depthmaster

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Depthmaster
Nivada GrenchenDepthmaster
MSRP $1,050

At a glance

12 of 29 specs differ
Diameter
Supermarine 300M40mm
Depthmaster39mm
Power Reserve
Supermarine 300M40h
Depthmaster38h
Water Resistance
Supermarine 300M300m
Depthmaster1,000m
MSRP
Supermarine 300M$3,550
Depthmaster$1,050

Full specifications

Case

6 specs
Diameter
40mm
39mm
Thickness
12mm
13mm
Lug-to-Lug
39mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
1000m
Caseback
Solid
Stainless Steel 316

Crystal & Dial

2 specs
Dial Color
Green
Black
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
BE-92AE
Sellita SW200
Power Reserve
40h
38h
Complications
None
GMT

Pricing

1 specs
MSRP
$3,550
$1,050

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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.

Nivada Grenchen Depthmaster

Owners widely report terrific build quality and a feel similar to the 1960s original, with some appreciating its reasonable lug-to-lug and better-than-expected appearance in person. The compact 39mm case is praised for its wearability, especially on smaller wrists, and offers impressive 1,000m water resistance. However, the Soprod P024 movement's 38-hour power reserve is a point of criticism, as is a bezel that can be difficult to grip and weak lume. Some owners find the watch wears on the smaller side, and the date complication is seen by one owner as detracting from the design. The "Pacman" variant is noted as polarizing, with one owner questioning their purchase, while the "Ghost Purple" variant's 30 and 45 numerals are described as having a rushed aesthetic. Overall, owners and reviewers rate the Nivada Grenchen Depthmaster highly for its faithful reissue, impressive water resistance, and comfortable wearability at a competitive price.

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