Side by side
Borealis Watch Co. NeptunovsFortis Marinemaster M-40
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Neptuno40.00mm
Marinemaster M-4040mm
Power Reserve
Neptuno40h
Marinemaster M-4038h
Water Resistance
Neptuno300m
Marinemaster M-40300m
MSRP
Neptuno$390
Marinemaster M-40$3,520
Full specifications
Case
4 specsDiameter
40.00mm
40mm
Thickness
14.10mm
13mm
Lug-to-Lug
47.20mm
—
Lug Width
20mm
21mm
Crystal & Dial
2 specsDial Color
Black
Orange
Lume
BGW9
None
Movement
3 specsCaliber
NH38
Sellita SW220-1
Power Reserve
40h
38h
Jewels
25
26
Pricing
1 specsMSRP
$390
$3,520
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