Which is cheaper, the Seiko Prospex Sea 1965 Heritage Diver's Watch or the Spinnaker Tesei Titanium?

At MSRP the Spinnaker Tesei Titanium is the cheaper of the two at $625, against $1,300 for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a $675 gap before any retailer discounting.

Which is bigger, the Seiko Prospex Sea 1965 Heritage Diver's Watch or the Spinnaker Tesei Titanium?

The Spinnaker Tesei Titanium wears larger at 42mm versus 40mm for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a 2mm difference across the dial.

Which has better water resistance, the Seiko Prospex Sea 1965 Heritage Diver's Watch or the Spinnaker Tesei Titanium?

The Seiko Prospex Sea 1965 Heritage Diver's Watch is rated to 300m versus 200m for the Spinnaker Tesei Titanium.

Which has a longer power reserve, the Seiko Prospex Sea 1965 Heritage Diver's Watch or the Spinnaker Tesei Titanium?

The Seiko Prospex Sea 1965 Heritage Diver's Watch carries a 72-hour power reserve against 40 hours on the Spinnaker Tesei Titanium.

What movement does the Seiko Prospex Sea 1965 Heritage Diver's Watch run compared to the Spinnaker Tesei Titanium?

Both watches run automatic movements — the Seiko Prospex Sea 1965 Heritage Diver's Watch uses the 6R55 and the Spinnaker Tesei Titanium uses the SII NH35A.

Side by side

Seiko Prospex Sea 1965 Heritage Diver's WatchvsSpinnaker Tesei Titanium

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

Seiko Prospex Sea 1965 Heritage Diver's Watch

spb451j1

MSRP $1,300

Spinnaker Tesei Titanium

tesei-titanium-automatic-matte-black-sp-5084-11

MSRP $625

At a glance

13 of 29 specs differ

Diameter

Prospex Sea 1965 Heritage Diver's Watch40mm

Tesei Titanium42mm

Power Reserve

Prospex Sea 1965 Heritage Diver's Watch72h

Tesei Titanium40h

Water Resistance

Prospex Sea 1965 Heritage Diver's Watch300m

Tesei Titanium200m

MSRP

Prospex Sea 1965 Heritage Diver's Watch$1,300

Tesei Titanium$625

Full specifications

Case

6 specs

Diameter

40mm

42mm

Thickness

13mm

14mm

Lug-to-Lug

46.4mm

50mm

Lug Width

20mm

22mm

Material

Stainless Steel

Titanium

Water Resistance

300m

200m

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

6R55

SII NH35A

Power Reserve

72h

40h

Jewels

Pricing

1 specs

MSRP

$1,300

$625

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