Which is cheaper, the Spinnaker Brutus Yellow or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

At MSRP the Spinnaker Brutus Yellow is the cheaper of the two at $395, against $2,800 for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a $2,405 gap before any retailer discounting.

Which is bigger, the Spinnaker Brutus Yellow or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Spinnaker Brutus Yellow wears larger at 43mm versus 39.5mm for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a 3.5mm difference across the dial.

Which has better water resistance, the Spinnaker Brutus Yellow or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch 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 Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch 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 Marinemaster Marinemaster 1965 Heritage Diver's Watch?

Both watches run automatic movements — the Spinnaker Brutus Yellow uses the SII NH35A and the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch uses the 6L37.

Side by side

Spinnaker Brutus YellowvsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

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 Marinemaster Marinemaster 1965 Heritage Diver's Watch

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MSRP $2,800

At a glance

14 of 29 specs differ

Diameter

Brutus Yellow43mm

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch39.5mm

Power Reserve

Brutus Yellow40h

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h

Water Resistance

Brutus Yellow150m

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m

MSRP

Brutus Yellow$395

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch$2,800

Full specifications

Case

6 specs

Diameter

43mm

39.5mm

Thickness

13mm

12.3mm

Lug-to-Lug

51mm

47.2mm

Lug Width

22mm

20mm

Material

316L Stainless Steel

Stainless Steel

Water Resistance

150m

200m

Crystal & Dial

4 specs

Crystal Shape

Flat

Box

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

6L37

Power Reserve

40h

45h

Jewels

Pricing

1 specs

MSRP

$395

$2,800

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