Side by side
Lum-Tec RPMvsSeiko Prospex SPEEDTIMER
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
RPM43mm
Prospex SPEEDTIMER42mm
Power Reserve
RPM40h
Prospex SPEEDTIMER40h
Water Resistance
RPM50m
Prospex SPEEDTIMER100m
MSRP
RPM$495
Prospex SPEEDTIMER$2,200
Full specifications
Case
5 specsDiameter
43mm
42mm
Thickness
12.3mm
12.9mm
Lug-to-Lug
41mm
49.6mm
Material
Titanium
Stainless Steel
Water Resistance
50m
100m
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Dial Color
RPM 3
Black
Lume
None
LumiBrite on hands and index(es)
Movement
2 specsCaliber
—
5X83
Jewels
25
14
Pricing
1 specsMSRP
$495
$2,200
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