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 $1,100 for the Seiko Prospex Sea — a $751 gap before any retailer discounting.

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

The Geckota Phalanx wears larger at 42mm versus 41.3mm for the Seiko Prospex Sea — a 0.7mm difference across the dial.

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

The Seiko Prospex Sea carries a 72-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 6R55.

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

spb481j1

MSRP $1,100

At a glance

12 of 29 specs differ

Diameter

Phalanx42mm

Prospex Sea41.3mm

Power Reserve

Phalanx40h

Prospex Sea72h

Water Resistance

Phalanx300m

Prospex Sea300m

MSRP

Phalanx$349

Prospex Sea$1,100

Full specifications

Case

5 specs

Diameter

42mm

41.3mm

Thickness

13.9mm

12.5mm

Lug-to-Lug

—

48.2mm

Lug Width

—

20mm

Material

316L Stainless Steel

Stainless Steel

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Green

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

ETA 2824

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$349

$1,100

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