Side by side

Fortis Marinemaster M-44 DLCvsDOXA SUB 300 Carbon

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

Marinemaster M-44 DLC
FortisMarinemaster M-44 DLC
MSRP $5,450
SUB 300 Carbon
DOXASUB 300 Carbon
MSRP $4,390

At a glance

12 of 29 specs differ
Diameter
Marinemaster M-44 DLC44mm
SUB 300 Carbon42.5mm
Power Reserve
Marinemaster M-44 DLC38h
SUB 300 Carbon38h
Water Resistance
Marinemaster M-44 DLC300m
SUB 300 Carbon300m
MSRP
Marinemaster M-44 DLC$5,450
SUB 300 Carbon$4,390

Full specifications

Case

5 specs
Diameter
44mm
42.5mm
Thickness
14mm
12mm
Lug-to-Lug
46mm
Lug Width
22mm
20mm
Material
Stainless Steel (DLC)
Carbon

Crystal & Dial

4 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
Black
Aquamarine
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Sellita SW220-1
COSC Chronometer
Jewels
26
25

Pricing

1 specs
MSRP
$5,450
$4,390

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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-44 DLC

The Fortis Marinemaster M-44 DLC is widely praised for its robust COSC-certified Kenissi Werk 11 movement, offering a 70-hour power reserve, and its stealthy, scratch-resistant Dianoir DLC coating. Owners find it comfortable to wear despite its 44mm size, with one owner considering it a standout piece. Some reviewers note a subtle difference in the color tone of the DLC coating on the crown and bezel lock between variants. Overall, owners and reviewers regard the Fortis Marinemaster M-44 DLC highly for its durable construction and reliable, high-spec movement.

DOXA SUB 300 Carbon

The DOXA SUB 300 Carbon is widely praised for its exceptionally lightweight and comfortable forged carbon case, making it an ideal vacation or everyday watch. Owners and reviewers highlight the vibrant dial colors, the satisfyingly clicky bezel action, and the comfortable, adjustable rubber strap with a clever clasp. Its COSC-certified ETA 2824-2 movement is noted for reliable timekeeping, with one owner reporting +0.9 seconds per day and another an average of +5 seconds per day, though a 38-hour power reserve is a trade-off for its slimness. Some reviewers point out that the no-decompression bezel markings may not align with current diving science and that the luminous markers are less bright than some alternatives. The integrated rubber strap requires cutting to size, and the clasp has sharp edges. On balance, owners and reviewers rate the DOXA SUB 300 Carbon highly for its unique, lightweight carbon construction and comfortable wearability.

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