Side by side

Fortis Marinemaster M-40vsBaltic Hermétique Summer

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
Hermétique Summer
BalticHermétique Summer
MSRP $594

At a glance

12 of 29 specs differ
Diameter
Marinemaster M-4040mm
Hermétique Summer37mm
Power Reserve
Marinemaster M-4038h
Hermétique Summer42h
Water Resistance
Marinemaster M-40300m
Hermétique Summer150m
MSRP
Marinemaster M-40$3,520
Hermétique Summer$594

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
37mm
Thickness
13mm
10.8mm
Lug-to-Lug
46mm
Lug Width
21mm
20mm
Water Resistance
300m
150m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
None
BGW9

Movement

3 specs
Caliber
Sellita SW220-1
Miyota 9039
Power Reserve
38h
42h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$594

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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.

Baltic Hermétique Summer

Reviewers highlight the Baltic Hermétique Summer's compact 37mm brushed case with a polished bezel and 150 meters of water resistance. The watch features glossy dials in bright colors with raised BGW9 Super-LumiNova indices that emit a strong blue glow, and it comes with color-matched FKM rubber straps or Baltic bracelets. The Miyota 9039 movement supports hacking and hand-winding. However, the recessed crown can be difficult to manipulate if fingernails are not long enough, and the movement has a stated accuracy of -10/+30 seconds per day. Overall, reviewers praise the Baltic Hermétique Summer for its well-balanced, colorful dials and strong lume at an affordable price point.

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