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Home/Browse/Fortis/Marinemaster M-40
Fortis Marinemaster M-40 — Amber Orange
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Fortis Marinemaster M-40

Ref. F8120024
Diver

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.

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Marinemaster M-40
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14 Variants
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Retail MSRPIn stock
$3,520
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Alternatives
Case
40mm
Power Reserve
38h
Movement
Automatic
Water Resistance
300m
Crystal
Sapphire
01

Case Dimensions

Diameter40mm
Thickness13mm
Lug-to-Lug—
Lug Width21mm
02

Case Build

MaterialStainless Steel
Water Resistance300m
03

Crystal & Dial

CrystalSapphire
Dial ColorAmber Orange
04

Movement

Caliber
Sellita SW220-1
TypeAutomatic
Beat Rate28,800 vph (4.0Hz)
Power Reserve38 hours
Jewels26
HackingNo
Hand-WindingNo
ComplicationsTime only
05

Design Language

Dial styleTextured
BezelRotating (dive)
Bracelet / strapRubber strap
HandsBaton
AI-detected from product image · 5/22/2026

Photos

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