Side by side

Fortis Marinemaster M-40vsOrient M-Force AC0N

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
M-Force AC0N
OrientM-Force AC0N
MSRP $555

At a glance

15 of 29 specs differ
Diameter
Marinemaster M-4040mm
M-Force AC0N45mm
Power Reserve
Marinemaster M-4038h
M-Force AC0N40h
Water Resistance
Marinemaster M-40300m
M-Force AC0N200m
MSRP
Marinemaster M-40$3,520
M-Force AC0N$555

Full specifications

Case

5 specs
Diameter
40mm
45mm
Thickness
13mm
12.8mm
Lug-to-Lug
52mm
Lug Width
21mm
20mm
Water Resistance
300m
200m

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
Orange
Green
Indices
Applied

Movement

5 specs
Caliber
Sellita SW220-1
F6727
Beat Rate
28,800 vph
21,600 vph
Power Reserve
38h
40h
Jewels
26
22
Complications
None
Date

Pricing

1 specs
MSRP
$3,520
$555

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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.

Orient M-Force AC0N

Owners widely praise the Orient M-Force AC0N for its rugged, tank-like appearance and robust, well-built construction, with many citing the reliability of Japanese automatic movements as a key draw. Reviewers and owners consistently flag excellent lume and a superior diver bezel, though one owner notes poor low-light legibility due to weak lume. Accuracy figures vary, with one owner reporting stable +12 seconds/day timekeeping while another found it kept near-perfect time when fully wound; a wobbly crown was also noted by one owner. Overall, owners rate the Orient M-Force AC0N highly for its toughness and value, with its striking design and durable build being the primary reasons for satisfaction.

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