Side by side

Beaufort BicompaxvsSeiko Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Bicompax
BeaufortBicompax
MSRP $1,399
See the full Bicompax
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition
SeikoProspex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition
MSRP $2,400
See the full Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition
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Buy used on eBay ↗
Buy from Seiko ↗
Buy used on eBay ↗

At a glance

14 of 29 specs differ
Diameter
Bicompax40.5mm
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition42mm
Power Reserve
Bicompax63h
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition—
Water Resistance
Bicompax50m
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition100m
MSRP
Bicompax$1,399
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition$2,400

Full specifications

Case

5 specs
Category
—
Chronograph
Diameter
40.5mm
42mm
Thickness
13.8mm
12.9mm
Lug-to-Lug
47mm
49.6mm
Water Resistance
50m
100m

Crystal & Dial

4 specs
Crystal Shape
—
Curved
AR Coating
—
Super-clear coating
Dial Color
Salmon
—
Lume
Super-LumiNova applied to the index and hands for low-light readability.
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Sellita SW510M BH b
5X83
Type
Manual
Quartz
Power Reserve
63h
0h
Jewels
0
14

Pricing

1 specs
MSRP
$1,399
$2,400
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