Which is cheaper, the Beaufort Bicompax or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

At MSRP the Seiko Prospex Sea 1965 Heritage Diver's Watch is the cheaper of the two at $1,300, against $1,399 for the Beaufort Bicompax — a $99 gap before any retailer discounting.

Which is bigger, the Beaufort Bicompax or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Beaufort Bicompax wears larger at 40.5mm versus 40mm for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a 0.5mm difference across the dial.

Which has better water resistance, the Beaufort Bicompax or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch is rated to 300m versus 50m for the Beaufort Bicompax.

Which has a longer power reserve, the Beaufort Bicompax or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch carries a 72-hour power reserve against 63 hours on the Beaufort Bicompax.

What movement does the Beaufort Bicompax run compared to the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Beaufort Bicompax runs a manual caliber (Sellita SW510M BH b), while the Seiko Prospex Sea 1965 Heritage Diver's Watch runs a automatic (6R55).

Side by side

Beaufort BicompaxvsSeiko Prospex Sea 1965 Heritage Diver's Watch

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

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Beaufort Bicompax

MSRP $1,399

See the full Bicompax

Seiko Prospex Sea 1965 Heritage Diver's Watch

MSRP $1,300

See the full Prospex Sea 1965 Heritage Diver's Watch

At a glance

14 of 29 specs differ

Diameter

Bicompax40.5mm

Prospex Sea 1965 Heritage Diver's Watch40mm

Power Reserve

Bicompax63h

Prospex Sea 1965 Heritage Diver's Watch72h

Water Resistance

Bicompax50m

Prospex Sea 1965 Heritage Diver's Watch300m

MSRP

Bicompax$1,399

Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

5 specs

Crystal & Dial

4 specs

Crystal Shape

—

Curved

AR Coating

—

Anti-reflective coating on inner surface

Dial Color

Salmon

—

Lume

Super-LumiNova applied to the index and hands for low-light readability.

LumiBrite on hands, index(es) and bezel

Movement

4 specs

Caliber

Sellita SW510M BH b

6R55

Type

Manual

Automatic

Power Reserve

63h

72h

Jewels

Pricing

1 specs

MSRP

$1,399

$1,300

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Beaufort BicompaxvsSeiko Prospex Sea 1965 Heritage Diver's Watch

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