Side by side
Seiko Prospex SPEEDTIMERvsYema Radiance
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
Prospex SPEEDTIMER42.5mm
Radiance30mm
Power Reserve
Prospex SPEEDTIMER45h
Radiance40h
Water Resistance
Prospex SPEEDTIMER100m
Radiance30m
MSRP
Prospex SPEEDTIMER$3,000
Radiance$279
Full specifications
Case
7 specsCategory
Chronograph
Dress
Diameter
42.5mm
30mm
Thickness
15.1mm
6.3mm
Lug-to-Lug
50mm
—
Lug Width
20mm
14mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
30m
Crystal & Dial
3 specsCrystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands and index(es)
None
Movement
4 specsCaliber
8R46
—
Type
Automatic
Quartz
Power Reserve
45h
40h
Jewels
34
25
Pricing
1 specsMSRP
$3,000
$279
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