Which is cheaper, the Beaufort Bicompax or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

At MSRP the Beaufort Bicompax is the cheaper of the two at $1,399, against $2,500 for the Seiko Prospex SPEEDTIMER Mechanical Chronograph — a $1,101 gap before any retailer discounting.

Which is bigger, the Beaufort Bicompax or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Seiko Prospex SPEEDTIMER Mechanical Chronograph wears larger at 42mm versus 40.5mm for the Beaufort Bicompax — a 1.5mm difference across the dial.

Which has better water resistance, the Beaufort Bicompax or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Beaufort Bicompax is rated to 50m versus 10m for the Seiko Prospex SPEEDTIMER Mechanical Chronograph.

Which has a longer power reserve, the Beaufort Bicompax or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Beaufort Bicompax carries a 63-hour power reserve against 45 hours on the Seiko Prospex SPEEDTIMER Mechanical Chronograph.

What movement does the Beaufort Bicompax run compared to the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Beaufort Bicompax runs a manual caliber (Sellita SW510M BH b), while the Seiko Prospex SPEEDTIMER Mechanical Chronograph runs a automatic (8R48).

Side by side

Beaufort BicompaxvsSeiko Prospex SPEEDTIMER Mechanical Chronograph

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

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Beaufort Bicompax

bicompax-circuit-panda-1

MSRP $1,399

Seiko Prospex SPEEDTIMER Mechanical Chronograph

srq047j1

MSRP $2,500

At a glance

14 of 29 specs differ

Diameter

Bicompax40.5mm

Prospex SPEEDTIMER Mechanical Chronograph42mm

Power Reserve

Bicompax63h

Prospex SPEEDTIMER Mechanical Chronograph45h

Water Resistance

Bicompax50m

Prospex SPEEDTIMER Mechanical Chronograph100m

MSRP

Bicompax$1,399

Prospex SPEEDTIMER Mechanical Chronograph$2,500

Full specifications

Case

5 specs

Crystal & Dial

4 specs

Crystal 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 specs

Caliber

Sellita SW510M BH b

8R48

Type

Manual

Automatic

Power Reserve

63h

45h

Jewels

Pricing

1 specs

MSRP

$1,399

$2,500

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Beaufort BicompaxvsSeiko Prospex SPEEDTIMER Mechanical Chronograph

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