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Fortis Marinemaster M-40vsLoresum LS04

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520
LS04
LoresumLS04
Buy from Fortis ↗
Buy used on eBay ↗
Buy from Loresum ↗
Buy used on eBay ↗

At a glance

12 of 29 specs differ
Diameter
Marinemaster M-4040mm
LS0439.5mm
Power Reserve
Marinemaster M-4038h
LS0440h
Water Resistance
Marinemaster M-40300m
LS0450m
MSRP
Marinemaster M-40$3,520
LS04—

Full specifications

Case

6 specs
Category
Diver
—
Diameter
40mm
39.5mm
Thickness
13mm
9mm
Lug-to-Lug
—
46.5mm
Lug Width
21mm
20mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Orange
Blue Aventurine
Lume
None
Super-LumiNova® BGW9

Movement

3 specs
Caliber
Sellita SW220-1
Miyota 9015
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
—
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All alternatives to the Marinemaster M-40 →All alternatives to the LS04 →
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