Side by side
Boldr MarinevsSeiko Prospex SPEEDTIMER
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Marine40mm
Prospex SPEEDTIMER42.5mm
Power Reserve
Marine40h
Prospex SPEEDTIMER45h
Water Resistance
Marine200m
Prospex SPEEDTIMER100m
MSRP
Marine$439
Prospex SPEEDTIMER$3,000
Full specifications
Case
5 specsCategory
Tool
Chronograph
Diameter
40mm
42.5mm
Thickness
12.3mm
15.1mm
Lug-to-Lug
46mm
50mm
Water Resistance
200m
100m
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
Defender Elewana
Black
Lume
Super-LumiNova
LumiBrite on hands and index(es)
Movement
3 specsCaliber
NH35A
8R46
Power Reserve
40h
45h
Jewels
25
34
Pricing
1 specsMSRP
$439
$3,000
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