Which is cheaper, the Spinnaker Brutus Yellow or the Seiko Prospex Sea?

At MSRP the Spinnaker Brutus Yellow is the cheaper of the two at $395, against $900 for the Seiko Prospex Sea — a $505 gap before any retailer discounting.

Which is bigger, the Spinnaker Brutus Yellow or the Seiko Prospex Sea?

The Spinnaker Brutus Yellow wears larger at 43mm versus 41mm for the Seiko Prospex Sea — a 2mm difference across the dial.

Which has better water resistance, the Spinnaker Brutus Yellow or the Seiko Prospex Sea?

The Seiko Prospex Sea is rated to 200m versus 150m for the Spinnaker Brutus Yellow.

Which has a longer power reserve, the Spinnaker Brutus Yellow or the Seiko Prospex Sea?

The Seiko Prospex Sea carries a 70-hour power reserve against 40 hours on the Spinnaker Brutus Yellow.

What movement does the Spinnaker Brutus Yellow run compared to the Seiko Prospex Sea?

Both watches run automatic movements — the Spinnaker Brutus Yellow uses the SII NH35A and the Seiko Prospex Sea uses the 6R35.

Side by side

Spinnaker Brutus YellowvsSeiko Prospex Sea

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

Spinnaker Brutus Yellow

fleuss-automatic-popeye-bronemies-limited-edition-brutus-yellow-sp-5161-01

MSRP $395

Seiko Prospex Sea

spb317j1

MSRP $900

At a glance

14 of 29 specs differ

Diameter

Brutus Yellow43mm

Prospex Sea41mm

Power Reserve

Brutus Yellow40h

Prospex Sea70h

Water Resistance

Brutus Yellow150m

Prospex Sea200m

MSRP

Brutus Yellow$395

Prospex Sea$900

Full specifications

Case

6 specs

Diameter

43mm

41mm

Thickness

13mm

12.3mm

Lug-to-Lug

51mm

46.9mm

Lug Width

22mm

20mm

Material

316L Stainless Steel

Stainless Steel

Water Resistance

150m

200m

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Brutus Yellow

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

SII NH35A

6R35

Power Reserve

40h

70h

Jewels

Pricing

1 specs

MSRP

$395

$900

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Spinnaker Brutus YellowvsSeiko Prospex Sea

At a glance

Full specifications

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