Side by side

Fortis Marinemaster M-40vsSpinnaker Dumas Automatic

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

Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520
Dumas Automatic
SpinnakerDumas Automatic
MSRP $239

At a glance

10 of 29 specs differ
Diameter
Marinemaster M-4040mm
Dumas Automatic44mm
Power Reserve
Marinemaster M-4038h
Dumas Automatic40h
Water Resistance
Marinemaster M-40300m
Dumas Automatic300m
MSRP
Marinemaster M-40$3,520
Dumas Automatic$239

Full specifications

Case

5 specs
Diameter
40mm
44mm
Thickness
13mm
15mm
Lug-to-Lug
48mm
Lug Width
21mm
22mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Orange
Blue

Movement

3 specs
Caliber
Sellita SW220-1
SII NH35A
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$239

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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.

Fortis Marinemaster M-40

Owners praise the Fortis Amber Orange for its gorgeous appearance and strong wrist presence, noting its crazy lume and 70-hour power reserve. The Doxa SUB 300T, described as having a superb, eccentric design with a highly legible dial and functional no-decompression bezel, uses an ETA 2824-2 movement. However, the SUB 300T's 42.5mm case wears large and its 14mm thickness is not ideal for dress shirts, though it boasts 1,200m water resistance. On balance, owners appreciate the Fortis Amber Orange for its striking aesthetics and impressive lume.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

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