Side by side
Beaufort BicompaxvsSeiko Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
Bicompax40.5mm
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition42mm
Power Reserve
Bicompax63h
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition45h
Water Resistance
Bicompax50m
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition100m
MSRP
Bicompax$1,399
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition$2,500
Full specifications
Case
5 specsCategory
—
Chronograph
Diameter
40.5mm
42mm
Thickness
13.8mm
14.6mm
Lug-to-Lug
47mm
49.5mm
Water Resistance
50m
100m
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Salmon
Black
Lume
Super-LumiNova applied to the index and hands for low-light readability.
LumiBrite on hands and index(es)
Movement
4 specsCaliber
Sellita SW510M BH b
8R48
Type
Manual
Automatic
Power Reserve
63h
45h
Jewels
25
34
Pricing
1 specsMSRP
$1,399
$2,500
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