What movement does the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition run compared to the Spinnaker Tesei Forged Carbon?

Both watches run automatic movements — the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition uses the 8L35 and the Spinnaker Tesei Forged Carbon uses the SII NH35A.

Side by side

Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited EditionvsSpinnaker Tesei Forged Carbon

Q: Which is cheaper, the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition or the Spinnaker Tesei Forged Carbon?

At MSRP the Spinnaker Tesei Forged Carbon is the cheaper of the two at $550, against $3,300 for the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition — a $2,750 gap before any retailer discounting.

Q: Which is bigger, the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition or the Spinnaker Tesei Forged Carbon?

The Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition wears larger at 44mm versus 43mm for the Spinnaker Tesei Forged Carbon — a 1mm difference across the dial.

Q: Which has better water resistance, the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition or the Spinnaker Tesei Forged Carbon?

The Spinnaker Tesei Forged Carbon is rated to 300m versus 200m for the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition.

Q: Which has a longer power reserve, the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition or the Spinnaker Tesei Forged Carbon?

The Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition carries a 50-hour power reserve against 40 hours on the Spinnaker Tesei Forged Carbon.

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

Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

sla061j1

MSRP $3,300

Spinnaker Tesei Forged Carbon

tesei-forged-carbon-automatic-limited-edition-white-frost-sp-5143-01

MSRP $550

At a glance

14 of 29 specs differ

Diameter

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm

Tesei Forged Carbon43mm

Power Reserve

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h

Tesei Forged Carbon40h

Water Resistance

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m

Tesei Forged Carbon300m

MSRP

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition$3,300

Tesei Forged Carbon$550

Full specifications

Case

6 specs

Diameter

44mm

43mm

Thickness

13mm

16mm

Lug-to-Lug

49.3mm

52mm

Lug Width

20mm

22mm

Material

Stainless Steel

316L Stainless Steel

Water Resistance

200m

300m

Crystal & Dial

4 specs

Crystal Shape

Curved

Flat

AR Coating

Anti-reflective coating on inner surface

Inner

Dial Color

Black

White

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

3 specs

Caliber

8L35

SII NH35A

Power Reserve

50h

40h

Jewels

Pricing

1 specs

MSRP

$3,300

$550

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