Which is cheaper, the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition or the TSAO Baltimore Constellation Chrono-Diver - Mystic Blue?

At MSRP the TSAO Baltimore Constellation Chrono-Diver - Mystic Blue is the cheaper of the two at $450, against $1,350 for the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition — a $900 gap before any retailer discounting.

Which is bigger, the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition or the TSAO Baltimore Constellation Chrono-Diver - Mystic Blue?

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition wears larger at 42.7mm versus 41mm for the TSAO Baltimore Constellation Chrono-Diver - Mystic Blue — a 1.7mm difference across the dial.

Which has a longer power reserve, the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition or the TSAO Baltimore Constellation Chrono-Diver - Mystic Blue?

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition carries a 70-hour power reserve against 40 hours on the TSAO Baltimore Constellation Chrono-Diver - Mystic Blue.

What movement does the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition run compared to the TSAO Baltimore Constellation Chrono-Diver - Mystic Blue?

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition runs a automatic caliber (6R35), while the TSAO Baltimore Constellation Chrono-Diver - Mystic Blue runs a mecaquartz (Seiko VK64).

Side by side

Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special EditionvsTSAO Baltimore Constellation Chrono-Diver - Mystic Blue

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

Add a watch

Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

spb301j1

MSRP $1,350

TSAO Baltimore Constellation Chrono-Diver - Mystic Blue

constellation-chrono-diver-mystic-blue

MSRP $450

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Buy from TSAO Baltimore ↗

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At a glance

13 of 29 specs differ

Diameter

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm

Constellation Chrono-Diver - Mystic Blue41mm

Power Reserve

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h

Constellation Chrono-Diver - Mystic Blue40h

Water Resistance

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m

Constellation Chrono-Diver - Mystic Blue200m

MSRP

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350

Constellation Chrono-Diver - Mystic Blue$450

Full specifications

Case

4 specs

Crystal & Dial

4 specs

Crystal Shape

Curved

Flat

AR Coating

Anti-reflective coating on inner surface

Inner

Dial Color

Black

—

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

4 specs

Caliber

6R35

Seiko VK64

Type

Automatic

Mecaquartz

Power Reserve

70h

40h

Jewels

Pricing

1 specs

MSRP

$1,350

$450

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Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special EditionvsTSAO Baltimore Constellation Chrono-Diver - Mystic Blue

At a glance

Full specifications

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