Side by side

Fortis Marinemaster M-40vsKobold Phantom Black Ops

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
Phantom Black Ops
KoboldPhantom Black Ops
MSRP $6,450
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.

From video reviewers

The watch's Swiss Made construction and robust design are consistently praised. Reviewers noted the bracelet as a potential point of contention.

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

10 of 29 specs differ
Diameter
Marinemaster M-4040mm
Phantom Black Ops41mm
Power Reserve
Marinemaster M-4038h
Phantom Black Ops40h
Water Resistance
Marinemaster M-40300m
Phantom Black Ops300m
MSRP
Marinemaster M-40$3,520
Phantom Black Ops$6,450

Full specifications

Case

5 specs
Category
Diver
Diameter
40mm
41mm
Thickness
13mm
17mm
Lug-to-Lug
46mm
Lug Width
21mm
20mm

Crystal & Dial

1 specs
Dial Color
Orange

Movement

3 specs
Caliber
Sellita SW220-1
ETA 7750
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$6,450
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