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

At MSRP the Signum Cuda is the cheaper of the two at $499, against $1,300 for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a $801 gap before any retailer discounting.

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

The Signum Cuda wears larger at 42.5mm versus 40mm for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a 2.5mm difference across the dial.

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

The Seiko Prospex Sea 1965 Heritage Diver's Watch is rated to 300m versus 200m for the Signum Cuda.

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

Both watches run automatic movements — the Signum Cuda uses the Miyota 9015 and the Seiko Prospex Sea 1965 Heritage Diver's Watch uses the 6R55.

Side by side

Signum CudavsSeiko 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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Signum Cuda

signum-cuda-bronze-cathedral

MSRP $499

Seiko Prospex Sea 1965 Heritage Diver's Watch

spb451j1

MSRP $1,300

At a glance

15 of 29 specs differ

Diameter

Cuda42.5mm

Prospex Sea 1965 Heritage Diver's Watch40mm

Power Reserve

Cuda—

Prospex Sea 1965 Heritage Diver's Watch72h

Water Resistance

Cuda200m

Prospex Sea 1965 Heritage Diver's Watch300m

MSRP

Cuda$499

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

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

—

Black

Lume

SuperLuminova

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Miyota 9015

6R55

Power Reserve

—

72h

Jewels

Pricing

1 specs

MSRP

$499

$1,300

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—Used

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Signum CudavsSeiko Prospex Sea 1965 Heritage Diver's Watch

At a glance

Full specifications

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