Which is cheaper, the Spinnaker Brutus Yellow or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

At MSRP the Spinnaker Brutus Yellow is the cheaper of the two at $395, against $2,500 for the Seiko Prospex SPEEDTIMER Mechanical Chronograph — a $2,105 gap before any retailer discounting.

Which is bigger, the Spinnaker Brutus Yellow or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Spinnaker Brutus Yellow wears larger at 43mm versus 42mm for the Seiko Prospex SPEEDTIMER Mechanical Chronograph — a 1mm difference across the dial.

Which has better water resistance, the Spinnaker Brutus Yellow or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Spinnaker Brutus Yellow is rated to 150m versus 10m for the Seiko Prospex SPEEDTIMER Mechanical Chronograph.

Which has a longer power reserve, the Spinnaker Brutus Yellow or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Seiko Prospex SPEEDTIMER Mechanical Chronograph carries a 45-hour power reserve against 40 hours on the Spinnaker Brutus Yellow.

What movement does the Spinnaker Brutus Yellow run compared to the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

Both watches run automatic movements — the Spinnaker Brutus Yellow uses the SII NH35A and the Seiko Prospex SPEEDTIMER Mechanical Chronograph uses the 8R48.

Side by side

Spinnaker Brutus YellowvsSeiko Prospex SPEEDTIMER Mechanical Chronograph

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

Spinnaker Brutus Yellow

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MSRP $395

Seiko Prospex SPEEDTIMER Mechanical Chronograph

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MSRP $2,500

At a glance

15 of 29 specs differ

Diameter

Brutus Yellow43mm

Prospex SPEEDTIMER Mechanical Chronograph42mm

Power Reserve

Brutus Yellow40h

Prospex SPEEDTIMER Mechanical Chronograph45h

Water Resistance

Brutus Yellow150m

Prospex SPEEDTIMER Mechanical Chronograph100m

MSRP

Brutus Yellow$395

Prospex SPEEDTIMER Mechanical Chronograph$2,500

Full specifications

Case

7 specs

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 and index(es)

Movement

3 specs

Caliber

SII NH35A

8R48

Power Reserve

40h

45h

Jewels

Pricing

1 specs

MSRP

$395

$2,500

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