Side by side
Ralf Tech WRB AUTOMATIC METALvsSeiko Prospex Sea
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
WRB AUTOMATIC METAL39mm
Prospex Sea41.3mm
Power Reserve
WRB AUTOMATIC METAL40 hoursh
Prospex Sea72h
Water Resistance
WRB AUTOMATIC METAL200m
Prospex Sea300m
MSRP
WRB AUTOMATIC METAL$2,290
Prospex Sea$1,100
Full specifications
Case
5 specsCategory
—
Diver
Diameter
39mm
41.3mm
Thickness
12mm
12.5mm
Lug-to-Lug
46mm
48.2mm
Water Resistance
200m
300m
Crystal & Dial
2 specsAR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
RTA003
6R55
Power Reserve
40 hoursh
72h
Jewels
25
24
Pricing
1 specsMSRP
$2,290
$1,100
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