Which is cheaper, the Core Timepieces The River Watch or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

At MSRP the Core Timepieces The River Watch is the cheaper of the two at $540, against $2,800 for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a $2,260 gap before any retailer discounting.

Which is bigger, the Core Timepieces The River Watch or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Core Timepieces The River Watch wears larger at 42mm versus 39.5mm for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a 2.5mm difference across the dial.

Which has better water resistance, the Core Timepieces The River Watch or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Core Timepieces The River Watch is rated to 300m versus 200m for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch.

What movement does the Core Timepieces The River Watch run compared to the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

Both watches run automatic movements — the Core Timepieces The River Watch uses the Seiko NH34A and the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch uses the 6L37.

Side by side

Core Timepieces The River WatchvsSeiko Prospex Marinemaster Marinemaster 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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Core Timepieces The River Watch

MSRP $540

Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

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MSRP $2,800

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At a glance

15 of 29 specs differ

Diameter

The River Watch42mm

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch39.5mm

Power Reserve

The River Watch—

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h

Water Resistance

The River Watch300m

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m

MSRP

The River Watch$540

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch$2,800

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Box

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

6L37

Power Reserve

—

45h

Jewels

Pricing

1 specs

MSRP

—

$2,800

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Core Timepieces The River WatchvsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

At a glance

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