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 $1,500 for the Seiko Prospex Sea — a $1,201 gap before any retailer discounting.

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

The Seiko Prospex Sea wears larger at 43.5mm versus 38mm for the Helgray Kensington Quartz — a 5.5mm difference across the dial.

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

The Seiko Prospex Sea is rated to 200m versus 50m for the Helgray Kensington Quartz.

Which has a longer power reserve, the Helgray Kensington Quartz or the Seiko Prospex Sea?

The Seiko Prospex Sea carries a 70-hour power reserve against 40 hours on the Helgray Kensington Quartz.

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

The Helgray Kensington Quartz runs a quartz caliber (Miyota GL22), while the Seiko Prospex Sea runs a automatic (6R35).

Side by side

Helgray Kensington QuartzvsSeiko Prospex Sea

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

Helgray Kensington Quartz

kensington

MSRP $299

Seiko Prospex Sea

spb349j1

MSRP $1,500

At a glance

14 of 29 specs differ

Diameter

Kensington Quartz38mm

Prospex Sea43.5mm

Power Reserve

Kensington Quartz40h

Prospex Sea70h

Water Resistance

Kensington Quartz50m

Prospex Sea200m

MSRP

Kensington Quartz$299

Prospex Sea$1,500

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

Yes

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

Miyota GL22

6R35

Type

Quartz

Automatic

Power Reserve

40h

70h

Jewels

Pricing

1 specs

MSRP

$299

$1,500

Follow this matchup

Get a note when Helgray Kensington Quartz vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Farermicro

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Farer CUSHION CASEvsSeiko Prospex Sea Geckota Workshop Jumping HourvsSeiko Prospex Sea Farer Lethbridge GoldvsSeiko Prospex Sea Seiko Prospex SeavsVario VERSA Reversible Dual Time Helgray Kensington QuartzvsSpinnaker Tesei Titanium Helgray Kensington QuartzvsBorealis Watch Co. Jamanta

Edit this comparison Add another watch Explore more 37–45mm watches

Helgray Kensington QuartzvsSeiko Prospex Sea

At a glance

Full specifications

Follow this matchup

More watches worth a look

CUSHION CASE

Tesei Titanium

Workshop Jumping Hour

Jamanta

Great White 43

VERSA Reversible Dual Time

Hammerhead V3 300m Titanium

AGLAIA

People also compared