Which is cheaper, the Core Timepieces The River Watch or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

At MSRP the Core Timepieces The River Watch is the cheaper of the two at $540, against $1,350 for the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition — a $810 gap before any retailer discounting.

Which is bigger, the Core Timepieces The River Watch or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition wears larger at 42.7mm versus 42mm for the Core Timepieces The River Watch — a 0.7mm difference across the dial.

Which has better water resistance, the Core Timepieces The River Watch or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

The Core Timepieces The River Watch is rated to 300m versus 200m for the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition.

What movement does the Core Timepieces The River Watch run compared to the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

Both watches run automatic movements — the Core Timepieces The River Watch uses the Seiko NH34A and the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition uses the 6R35.

Side by side

Core Timepieces The River WatchvsSeiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

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

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Core Timepieces The River Watch

MSRP $540

Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

spb301j1

MSRP $1,350

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Buy from Seiko ↗

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At a glance

15 of 29 specs differ

Diameter

The River Watch42mm

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm

Power Reserve

The River Watch—

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h

Water Resistance

The River Watch300m

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m

MSRP

The River Watch$540

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350

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

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Seiko NH34A

6R35

Power Reserve

—

70h

Jewels

Pricing

1 specs

MSRP

—

$1,350

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Core Timepieces The River WatchvsSeiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

At a glance

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