Which is bigger, the Decima Gatekeeper or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

The Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition wears larger at 40mm versus 38mm for the Decima Gatekeeper — a 2mm difference across the dial.

Which has better water resistance, the Decima Gatekeeper or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

The Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition is rated to 300m versus 50m for the Decima Gatekeeper.

Which has a longer power reserve, the Decima Gatekeeper or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

The Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition carries a 72-hour power reserve against 42 hours on the Decima Gatekeeper.

What movement does the Decima Gatekeeper run compared to the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

Both watches run automatic movements — the Decima Gatekeeper uses the Miyota 9039 and the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition uses the 6R55.

Side by side

Decima GatekeepervsSeiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

Q: Which is cheaper, the Decima Gatekeeper or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

At MSRP the Decima Gatekeeper is the cheaper of the two at $599, against $1,400 for the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition — a $801 gap before any retailer discounting.

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

Add a watch

Decima Gatekeeper

gatekeeper-white

MSRP $599

Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

spb545j1

MSRP $1,400

At a glance

14 of 29 specs differ

Diameter

Gatekeeper38mm

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition40mm

Power Reserve

Gatekeeper42h

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition72h

Water Resistance

Gatekeeper50m

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition300m

MSRP

Gatekeeper$599

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition$1,400

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Yes

Anti-reflective coating on inner surface

Dial Color

White

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Miyota 9039

6R55

Power Reserve

42h

72h

Jewels

Pricing

1 specs

MSRP

$599

$1,400

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Decima GatekeepervsSeiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

At a glance

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