Side by side

Fortis Marinemaster M-40vsSternglas Naos Edition Sport

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
Naos Edition Sport
SternglasNaos Edition Sport
MSRP $269

At a glance

12 of 29 specs differ
Diameter
Marinemaster M-4040mm
Naos Edition Sport38mm
Power Reserve
Marinemaster M-4038h
Naos Edition Sport
Water Resistance
Marinemaster M-40300m
Naos Edition Sport50m
MSRP
Marinemaster M-40$3,520
Naos Edition Sport$269

Full specifications

Case

6 specs
Category
Diver
Sport
Diameter
40mm
38mm
Thickness
13mm
8mm
Lug-to-Lug
41mm
Lug Width
21mm
20mm
Water Resistance
300m
50m

Crystal & Dial

1 specs
Dial Color
Orange

Movement

4 specs
Caliber
Sellita SW220-1
Ronda 715
Type
Automatic
Quartz
Power Reserve
38h
Jewels
26

Pricing

1 specs
MSRP
$3,520
$269

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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.

Sternglas Naos Edition Sport

Owners widely praise the Sternglas Naos Edition Sport for its durability and refined daily wearability, easily transitioning between casual and dressier occasions. The sapphire crystal remains scratchless, and the steel case holds up well, though some users report minor bezel micro-scratching. One owner found the original tan strap showed significant wear and fraying within a year, necessitating a replacement. Opinions are split on the watch's aesthetic; some describe it as underwhelming with a printed-on face, small font, and toy-like hands, feeling cheap and looking worse in person, while others love the watch and find it looks fantastic. Some owners in the line also note that certain variants wear smaller than expected, with a desire for smaller case sizes for slender wrists. On balance, owners rate the Sternglas Naos Edition Sport highly for its durable construction and versatile design, despite some reservations about its dial finishing and strap quality.

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