Which is cheaper, the Geckota Phalanx or the Seiko Prospex Sea?

At MSRP the Geckota Phalanx is the cheaper of the two at $349, against $1,500 for the Seiko Prospex Sea — a $1,151 gap before any retailer discounting.

Which is bigger, the Geckota Phalanx or the Seiko Prospex Sea?

The Seiko Prospex Sea wears larger at 43.5mm versus 42mm for the Geckota Phalanx — a 1.5mm difference across the dial.

Which has better water resistance, the Geckota Phalanx or the Seiko Prospex Sea?

The Geckota Phalanx is rated to 300m versus 200m for the Seiko Prospex Sea.

Which has a longer power reserve, the Geckota Phalanx or the Seiko Prospex Sea?

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

What movement does the Geckota Phalanx run compared to the Seiko Prospex Sea?

Both watches run automatic movements — the Geckota Phalanx uses the ETA 2824 and the Seiko Prospex Sea uses the 6R35.

Side by side

Geckota PhalanxvsSeiko Prospex Sea

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

Geckota Phalanx

phalanx-satin-reef-green

MSRP $349

Seiko Prospex Sea

spb349j1

MSRP $1,500

At a glance

13 of 29 specs differ

Diameter

Phalanx42mm

Prospex Sea43.5mm

Power Reserve

Phalanx40h

Prospex Sea70h

Water Resistance

Phalanx300m

Prospex Sea200m

MSRP

Phalanx$349

Prospex Sea$1,500

Full specifications

Case

6 specs

Diameter

42mm

43.5mm

Thickness

13.9mm

13.3mm

Lug-to-Lug

—

51mm

Lug Width

—

22mm

Material

316L Stainless Steel

Titanium

Water Resistance

300m

200m

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Green

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

ETA 2824

6R35

Power Reserve

40h

70h

Jewels

Pricing

1 specs

MSRP

$349

$1,500

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