Side by side
Bremont Supermarine 300MvsMarnaut Safe Harbour 100
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Supermarine 300M40mm
Safe Harbour 10039mm
Power Reserve
Supermarine 300M40h
Safe Harbour 10041h
Water Resistance
Supermarine 300M300m
Safe Harbour 100100m
MSRP
Supermarine 300M$3,550
Safe Harbour 100$1,042
Full specifications
Case
6 specsCategory
Diver
—
Diameter
40mm
39mm
Thickness
12mm
13mm
Lug-to-Lug
—
45mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
2 specsDial Color
Green
Black
Lume
None
SuperLuminova C3
Movement
2 specsCaliber
BE-92AE
Sellita SW200-1
Power Reserve
40h
41h
Pricing
1 specsMSRP
$3,550
—
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Bremont Supermarine 300M vs Marnaut Safe Harbour 100 gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Marnaut Safe Harbour 100vsSpinnaker Spence 300Marnaut Safe Harbour 100vsGalo Super200 Dark EditionMarnaut Safe Harbour 100vsGalo Super200Marnaut Safe Harbour 100vsPhoibos Eagle Ray No DateBremont Supermarine 300MvsMarnaut Safe Harbour 100CBremont Supermarine 300MvsMarnaut Safe Harbour 100C Safe Harbour Classic 100 (cushion case, multi-subdial complication, applied batons)













