Which is cheaper, the Serket Watch Co Reef X Diver or the Seiko Prospex Sea?

At MSRP the Serket Watch Co Reef X Diver is the cheaper of the two at $499, against $1,500 for the Seiko Prospex Sea — a $1,001 gap before any retailer discounting.

Which is bigger, the Serket Watch Co Reef X Diver or the Seiko Prospex Sea?

The Seiko Prospex Sea wears larger at 43.5mm versus 43mm for the Serket Watch Co Reef X Diver — a 0.5mm difference across the dial.

Which has a longer power reserve, the Serket Watch Co Reef X Diver or the Seiko Prospex Sea?

The Seiko Prospex Sea carries a 70-hour power reserve against 40 hours on the Serket Watch Co Reef X Diver.

What movement does the Serket Watch Co Reef X Diver run compared to the Seiko Prospex Sea?

Both watches run automatic movements — the Serket Watch Co Reef X Diver uses the Seiko NH35 and the Seiko Prospex Sea uses the 6R35.

Side by side

Serket Watch Co Reef X DivervsSeiko Prospex Sea

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

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Serket Watch Co Reef X Diver

reef-x-diver-cotton-candy

MSRP $499

Seiko Prospex Sea

spb349j1

MSRP $1,500

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At a glance

12 of 29 specs differ

Diameter

Reef X Diver43mm

Prospex Sea43.5mm

Power Reserve

Reef X Diver40h

Prospex Sea70h

Water Resistance

Reef X Diver200m

Prospex Sea200m

MSRP

Reef X Diver$499

Prospex Sea$1,500

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Pink

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Seiko NH35

6R35

Power Reserve

40h

70h

Jewels

Pricing

1 specs

MSRP

$499

$1,500

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Serket Watch Co Reef X DivervsSeiko Prospex Sea

At a glance

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