Side by side

Fortis Marinemaster M-40vsMaen Manhattan Ultra Thin

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
Manhattan Ultra Thin
MaenManhattan Ultra Thin
MSRP $1,159

At a glance

11 of 29 specs differ
Diameter
Marinemaster M-4040mm
Manhattan Ultra Thin37mm
Power Reserve
Marinemaster M-4038h
Manhattan Ultra Thin40h
Water Resistance
Marinemaster M-40300m
Manhattan Ultra Thin100m
MSRP
Marinemaster M-40$3,520
Manhattan Ultra Thin$1,159

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
37mm
Thickness
13mm
7.1mm
Lug Width
21mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Orange
M2.2.1

Movement

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

Pricing

1 specs
MSRP
$3,520
$1,159

Follow this matchup

Get a note when Fortis Marinemaster M-40 vs Maen Manhattan Ultra Thin gets more votes, a community discussion, or a price drop. No account needed.

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.

Maen Manhattan Ultra Thin

The Maen Manhattan Ultra Thin is widely praised for its slim case, with reviewers noting a 6.9mm or 7.1mm thickness, and its elegant, vintage-inspired styling. Specific design elements highlighted include a Côtes de Genève or hammered "Tuscan" dial finish and an integrated bracelet. The hand-wound ETA Pesaux 7001 movement is noted for its role in achieving the thin profile, offering a 42-hour power reserve. However, the black text on the vertically striped dial can be difficult to read, and the integrated bracelet lacks a quick-release system. Some reviewers expressed a desire for a 38mm case size option. Overall, reviewers rate the Maen Manhattan Ultra Thin highly for its slim, elegant design and vintage aesthetic at its price point.

From video reviewers

The ultra-thin profile is a standout feature. The value proposition is a point of discussion.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.