Side by side

Fortis Marinemaster M-40vsSternglas Naos Großdatum

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 Großdatum
SternglasNaos Großdatum
MSRP $323

At a glance

13 of 29 specs differ
Diameter
Marinemaster M-4040mm
Naos Großdatum38mm
Power Reserve
Marinemaster M-4038h
Naos Großdatum
Water Resistance
Marinemaster M-40300m
Naos Großdatum50m
MSRP
Marinemaster M-40$3,520
Naos Großdatum$323

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
38mm
Thickness
13mm
10mm
Lug-to-Lug
42mm
Lug Width
21mm
20mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Orange
Lume
None
Luminova Punkten

Movement

4 specs
Caliber
Sellita SW220-1
Seiko VJ76
Type
Automatic
Quartz
Power Reserve
38h
Jewels
26

Pricing

1 specs
MSRP
$3,520
$323

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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 Großdatum

The Sternglas Naos Großdatum is praised for its Bauhaus aesthetic and value, with one owner finding it an affordable alternative to other designs. However, some owners report it feels underwhelming and cheap, with a printed-on face, small font, and toy-like hands, and find the strap to be of poor quality. The watch features a 38mm stainless steel case, an Alabaster dial with beige LumiNova, and a Seiko TMI VJ76 quartz movement rated for -20/+20 seconds per month. On balance, owners and reviewers are divided, with the primary point of contention being the perceived quality and aesthetic execution of the Sternglas Naos Großdatum.

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