What movement does the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch run compared to the Spinnaker Piccard Skeleton?

Both watches run automatic movements — the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch uses the 6L37 and the Spinnaker Piccard Skeleton uses the SII NH38A.

Side by side

Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's WatchvsSpinnaker Piccard Skeleton

Q: Which is cheaper, the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch or the Spinnaker Piccard Skeleton?

At MSRP the Spinnaker Piccard Skeleton is the cheaper of the two at $550, against $2,800 for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a $2,250 gap before any retailer discounting.

Q: Which is bigger, the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch or the Spinnaker Piccard Skeleton?

The Spinnaker Piccard Skeleton wears larger at 45mm versus 39.5mm for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a 5.5mm difference across the dial.

Q: Which has better water resistance, the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch or the Spinnaker Piccard Skeleton?

The Spinnaker Piccard Skeleton is rated to 550m versus 200m for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch.

Q: Which has a longer power reserve, the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch or the Spinnaker Piccard Skeleton?

The Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch carries a 45-hour power reserve against 40 hours on the Spinnaker Piccard Skeleton.

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

Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

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MSRP $2,800

Spinnaker Piccard Skeleton

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MSRP $550

At a glance

13 of 29 specs differ

Diameter

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

Piccard Skeleton45mm

Power Reserve

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h

Piccard Skeleton40h

Water Resistance

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m

Piccard Skeleton550m

MSRP

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

Piccard Skeleton$550

Full specifications

Case

6 specs

Diameter

39.5mm

45mm

Thickness

12.3mm

21mm

Lug-to-Lug

47.2mm

52mm

Lug Width

20mm

22mm

Material

Stainless Steel

316L Stainless Steel

Water Resistance

200m

550m

Crystal & Dial

3 specs

Crystal Shape

Box

Flat

AR Coating

Anti-reflective coating on inner surface

Inner

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

3 specs

Caliber

6L37

SII NH38A

Power Reserve

45h

40h

Jewels

Pricing

1 specs

MSRP

$2,800

$550

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