Side by side

Fortis Marinemaster M-40vsYema Diver

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
Diver
YemaDiver
MSRP $990

At a glance

10 of 29 specs differ
Diameter
Marinemaster M-4040mm
Diver39.5mm
Power Reserve
Marinemaster M-4038h
Diver40h
Water Resistance
Marinemaster M-40300m
Diver200m
MSRP
Marinemaster M-40$3,520
Diver$990

Full specifications

Case

5 specs
Diameter
40mm
39.5mm
Thickness
13mm
10.95mm
Lug Width
21mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
Orange
Black

Movement

3 specs
Caliber
Sellita SW220-1
Sellita SW200
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$990

Follow this matchup

Get a note when Fortis Marinemaster M-40 vs Yema Diver 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.

Yema Diver

One owner reported a water ingress issue on their Yema Diver the first time it got wet in a lake, despite rinsing and inspecting the watch and bezel. Another owner notes this manual wind Yema Diver has a cool patina but is unlikely to be waterproof or gain value. Overall, owners view the Yema Diver as a fun second watch rather than an investment.

From video reviewers

The Swiss Sellita movement is a notable feature. Reviewers did not reach a consensus on any weaknesses.

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.