Which is cheaper, the Seiko Prospex Sea or the Yema Radiance?

At MSRP the Yema Radiance is the cheaper of the two at $279, against $900 for the Seiko Prospex Sea — a $621 gap before any retailer discounting.

Which is bigger, the Seiko Prospex Sea or the Yema Radiance?

The Seiko Prospex Sea wears larger at 41mm versus 30mm for the Yema Radiance — a 11mm difference across the dial.

Which has better water resistance, the Seiko Prospex Sea or the Yema Radiance?

The Seiko Prospex Sea is rated to 200m versus 30m for the Yema Radiance.

Which has a longer power reserve, the Seiko Prospex Sea or the Yema Radiance?

The Seiko Prospex Sea carries a 70-hour power reserve against 40 hours on the Yema Radiance.

What movement does the Seiko Prospex Sea run compared to the Yema Radiance?

The Seiko Prospex Sea runs a automatic caliber (6R35), while the Yema Radiance runs a quartz.

Side by side

Seiko Prospex SeavsYema Radiance

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

Seiko Prospex Sea

spb317j1

MSRP $900

Yema Radiance

yema-radiance-ymhf1586-am

MSRP $279

At a glance

15 of 29 specs differ

Diameter

Prospex Sea41mm

Radiance30mm

Power Reserve

Prospex Sea70h

Radiance40h

Water Resistance

Prospex Sea200m

Radiance30m

MSRP

Prospex Sea$900

Radiance$279

Full specifications

Case

7 specs

Crystal & Dial

3 specs

Crystal Shape

Curved

Flat

AR Coating

Anti-reflective coating on inner surface

Inner

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

4 specs

Caliber

6R35

—

Type

Automatic

Quartz

Power Reserve

70h

40h

Jewels

Pricing

1 specs

MSRP

$900

$279

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Seiko Prospex SeavsYema Radiance

At a glance

Full specifications

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