Side by side
Seiko Prospex SPEEDTIMERvsTimefactors PRS-57
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
PRS-5740mm
Power Reserve
Prospex SPEEDTIMER45h
PRS-5762h
Water Resistance
Prospex SPEEDTIMER100m
PRS-57100m
MSRP
Prospex SPEEDTIMER$3,000
PRS-57$1,268
Full specifications
Case
4 specsCategory
Chronograph
—
Diameter
42.5mm
40mm
Thickness
15.1mm
15mm
Lug-to-Lug
50mm
46mm
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)
SuperLuminova X1-C3
Movement
3 specsCaliber
8R46
Sellita SW510
Power Reserve
45h
62h
Jewels
34
25
Pricing
1 specsMSRP
$3,000
$1,268
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