Side by side
Seiko Prospex SPEEDTIMERvsTimefactors Vanguard
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Prospex SPEEDTIMER42.5mm
Vanguard40mm
Power Reserve
Prospex SPEEDTIMER45h
Vanguard—
Water Resistance
Prospex SPEEDTIMER100m
Vanguard100m
MSRP
Prospex SPEEDTIMER$3,000
Vanguard$1,027
Full specifications
Case
4 specsCategory
Chronograph
—
Diameter
42.5mm
40mm
Thickness
15.1mm
16mm
Lug-to-Lug
50mm
48mm
Crystal & Dial
4 specsCrystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
—
Lume
LumiBrite on hands and index(es)
None
Movement
3 specsCaliber
8R46
NE88
Power Reserve
45h
—
Jewels
34
25
Pricing
1 specsMSRP
$3,000
$1,027
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