What movement does the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch run compared to the Spinnaker Piccard Skeleton?

Both watches run automatic movements — the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch uses the 8L45 and the Spinnaker Piccard Skeleton uses the SII NH38A.

Side by side

Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's WatchvsSpinnaker Piccard Skeleton

Q: Which is cheaper, the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch or the Spinnaker Piccard Skeleton?

At MSRP the Spinnaker Piccard Skeleton is the cheaper of the two at $550, against $3,600 for the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch — a $3,050 gap before any retailer discounting.

Q: Which is bigger, the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch or the Spinnaker Piccard Skeleton?

The Spinnaker Piccard Skeleton wears larger at 45mm versus 42.6mm for the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch — a 2.4mm difference across the dial.

Q: Which has better water resistance, the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch or the Spinnaker Piccard Skeleton?

The Spinnaker Piccard Skeleton is rated to 550m versus 300m for the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch.

Q: Which has a longer power reserve, the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch or the Spinnaker Piccard Skeleton?

The Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch carries a 72-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 1968 Heritage Diver's Watch

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MSRP $3,600

Spinnaker Piccard Skeleton

piccard-skeleton-automatic-dust-black-sp-5135-11

MSRP $550

At a glance

13 of 29 specs differ

Diameter

Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm

Piccard Skeleton45mm

Power Reserve

Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch72h

Piccard Skeleton40h

Water Resistance

Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m

Piccard Skeleton550m

MSRP

Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$3,600

Piccard Skeleton$550

Full specifications

Case

6 specs

Diameter

42.6mm

45mm

Thickness

14.1mm

21mm

Lug-to-Lug

49.3mm

52mm

Lug Width

20mm

22mm

Material

Stainless Steel

316L Stainless Steel

Water Resistance

300m

550m

Crystal & Dial

3 specs

Crystal Shape

Curved

Flat

AR Coating

Anti-reflective coating on inner surface

Inner

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

3 specs

Caliber

8L45

SII NH38A

Power Reserve

72h

40h

Jewels

Pricing

1 specs

MSRP

$3,600

$550

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