Which has better water resistance, the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch or the Yema Radiance?

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch is rated to 300m versus 30m for the Yema Radiance.

Which has a longer power reserve, the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch or the Yema Radiance?

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch carries a 72-hour power reserve against 40 hours on the Yema Radiance.

What movement does the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch run compared to the Yema Radiance?

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch runs a automatic caliber (6R54), while the Yema Radiance runs a quartz.

Side by side

Seiko Prospex Sea 1968 Heritage Diver's GMT WatchvsYema Radiance

Q: Which is cheaper, the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch or the Yema Radiance?

At MSRP the Yema Radiance is the cheaper of the two at $279, against $1,700 for the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch — a $1,421 gap before any retailer discounting.

Q: Which is bigger, the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch or the Yema Radiance?

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch wears larger at 42mm versus 30mm for the Yema Radiance — a 12mm difference across the dial.

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

Seiko Prospex Sea 1968 Heritage Diver's GMT Watch

spb519j1

MSRP $1,700

Yema Radiance

yema-radiance-ymhf1586-am

MSRP $279

At a glance

14 of 29 specs differ

Diameter

Prospex Sea 1968 Heritage Diver's GMT Watch42mm

Radiance30mm

Power Reserve

Prospex Sea 1968 Heritage Diver's GMT Watch72h

Radiance40h

Water Resistance

Prospex Sea 1968 Heritage Diver's GMT Watch300m

Radiance30m

MSRP

Prospex Sea 1968 Heritage Diver's GMT Watch$1,700

Radiance$279

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Anti-reflective coating on inner surface

Inner

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

4 specs

Caliber

6R54

—

Type

Automatic

Quartz

Power Reserve

72h

40h

Jewels

Pricing

1 specs

MSRP

$1,700

$279

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