Side by side
Fortis Marinemaster M-40vsSeestern S471 Double Crown Diver
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Marinemaster M-4040mm
S471 Double Crown Diver38mm
Power Reserve
Marinemaster M-4038h
S471 Double Crown Diver35h+h
Water Resistance
Marinemaster M-40300m
S471 Double Crown Diver100m
MSRP
Marinemaster M-40$3,520
S471 Double Crown Diver$179
Full specifications
Case
6 specsDiameter
40mm
38mm
Thickness
13mm
12mm
Lug-to-Lug
—
40.3mm
Lug Width
21mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
1 specsDial Color
Orange
Blue
Movement
5 specsCaliber
Sellita SW220-1
Miyota 8215
Beat Rate
28,800 vph
3 vph
Power Reserve
38h
35h+h
Jewels
26
21
Complications
None
Date
Pricing
1 specsMSRP
$3,520
$179
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