Side by side

Fortis Marinemaster M-40vsSternglas Naos Automatik

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 Automatik
SternglasNaos Automatik
MSRP $463

At a glance

11 of 29 specs differ
Diameter
Marinemaster M-4040mm
Naos Automatik38mm
Power Reserve
Marinemaster M-4038h
Naos Automatik42h
Water Resistance
Marinemaster M-40300m
Naos Automatik50m
MSRP
Marinemaster M-40$3,520
Naos Automatik$463

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
38mm
Thickness
13mm
12mm
Lug-to-Lug
43mm
Lug Width
21mm
20mm
Water Resistance
300m
50m

Crystal & Dial

1 specs
Dial Color
Orange

Movement

3 specs
Caliber
Sellita SW220-1
Miyota 8215
Power Reserve
38h
42h
Jewels
26

Pricing

1 specs
MSRP
$3,520
$463

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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 Automatik

The Sternglas Naos Automatik is praised for its stylish Bauhaus design and solid build quality for its price, featuring a sapphire crystal and elegant case. However, some dial text is too small and slim for easy readability, and the Milanese strap and clasp are considered lower quality, with the quick-change system also not meeting the brand's advertised standard. One owner found the 38mm model lighter than expected and preferred it over a Seiko SRP703 and an Apple Watch. Overall, owners and reviewers highlight the Sternglas Naos Automatik's attractive Bauhaus design and good value, despite some criticisms of dial legibility and strap quality.

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