Side by side
Praesidus Neptune 44vsSeiko Prospex SPEEDTIMER
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
Neptune 4444mm
Prospex SPEEDTIMER42.5mm
Power Reserve
Neptune 4440h
Prospex SPEEDTIMER45h
Water Resistance
Neptune 44200m
Prospex SPEEDTIMER100m
MSRP
Neptune 44$550
Prospex SPEEDTIMER$3,000
Full specifications
Case
7 specsCategory
Diver
Chronograph
Diameter
44mm
42.5mm
Thickness
—
15.1mm
Lug-to-Lug
—
50mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m
Crystal & Dial
5 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Patina
Black
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Miyota 9039
8R46
Power Reserve
40h
45h
Jewels
25
34
Pricing
1 specsMSRP
$550
$3,000
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