Which is cheaper, the Helgray Kensington Quartz or the Seiko Prospex Sea?

At MSRP the Helgray Kensington Quartz is the cheaper of the two at $299, against $795 for the Seiko Prospex Sea — a $496 gap before any retailer discounting.

Which is bigger, the Helgray Kensington Quartz or the Seiko Prospex Sea?

The Helgray Kensington Quartz wears larger at 38mm versus 34mm for the Seiko Prospex Sea — a 4mm difference across the dial.

Which has better water resistance, the Helgray Kensington Quartz or the Seiko Prospex Sea?

The Helgray Kensington Quartz is rated to 50m versus 20m for the Seiko Prospex Sea.

What movement does the Helgray Kensington Quartz run compared to the Seiko Prospex Sea?

Both watches run quartz movements — the Helgray Kensington Quartz uses the Miyota GL22 and the Seiko Prospex Sea uses the 6N01.

Side by side

Helgray Kensington QuartzvsSeiko Prospex Sea

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

The bottom line

The 34mm Prospex Sea wears 4mm narrower than the 38mm Kensington Quartz — that's a meaningful jump on most wrists.

Where to get them

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Helgray Kensington Quartz

MSRP $299

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Seiko Prospex Sea

MSRP $795

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Helgray Kensington Quartz

kensington

MSRP $299

Seiko Prospex Sea

sur595j1

MSRP $795

At a glance

10 of 29 specs differ

Diameter

Kensington Quartz38mm

Prospex Sea34mm

Power Reserve

Kensington Quartz40h

Prospex Sea40h

Water Resistance

Kensington Quartz50m

Prospex Sea200m

MSRP

Kensington Quartz$299

Prospex Sea$795

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

Yes

LumiBrite on hands and index(es)

Movement

1 specs

Caliber

Miyota GL22

6N01

Pricing

1 specs

MSRP

$299

$795

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Helgray Kensington QuartzvsSeiko Prospex Sea

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Full specifications

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