Which is cheaper, the Cincinnati Watch Company Blue enamel over Guilloché or the Seiko Prospex Sea 1968 Heritage Diver's GMT?

At MSRP the Seiko Prospex Sea 1968 Heritage Diver's GMT is the cheaper of the two at $1,500, against $1,995 for the Cincinnati Watch Company Blue enamel over Guilloché — a $495 gap before any retailer discounting.

Which is bigger, the Cincinnati Watch Company Blue enamel over Guilloché or the Seiko Prospex Sea 1968 Heritage Diver's GMT?

The Seiko Prospex Sea 1968 Heritage Diver's GMT wears larger at 42mm versus 38mm for the Cincinnati Watch Company Blue enamel over Guilloché — a 4mm difference across the dial.

Which has better water resistance, the Cincinnati Watch Company Blue enamel over Guilloché or the Seiko Prospex Sea 1968 Heritage Diver's GMT?

The Seiko Prospex Sea 1968 Heritage Diver's GMT is rated to 200m versus 100m for the Cincinnati Watch Company Blue enamel over Guilloché.

Which has a longer power reserve, the Cincinnati Watch Company Blue enamel over Guilloché or the Seiko Prospex Sea 1968 Heritage Diver's GMT?

The Seiko Prospex Sea 1968 Heritage Diver's GMT carries a 72-hour power reserve against 45 hours on the Cincinnati Watch Company Blue enamel over Guilloché.

What movement does the Cincinnati Watch Company Blue enamel over Guilloché run compared to the Seiko Prospex Sea 1968 Heritage Diver's GMT?

The Cincinnati Watch Company Blue enamel over Guilloché runs a manual caliber (Sellita SW210-1), while the Seiko Prospex Sea 1968 Heritage Diver's GMT runs a automatic (6R54).

Side by side

Cincinnati Watch Company Blue enamel over GuillochévsSeiko Prospex Sea 1968 Heritage Diver's GMT

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

Cincinnati Watch Company Blue enamel over Guilloché

blue-enamel-over-guilloche

MSRP $1,995

Seiko Prospex Sea 1968 Heritage Diver's GMT

spb381j1

MSRP $1,500

At a glance

19 of 29 specs differ

Diameter

Blue enamel over Guilloché38mm

Prospex Sea 1968 Heritage Diver's GMT42mm

Power Reserve

Blue enamel over Guilloché45h

Prospex Sea 1968 Heritage Diver's GMT72h

Water Resistance

Blue enamel over Guilloché100m

Prospex Sea 1968 Heritage Diver's GMT200m

MSRP

Blue enamel over Guilloché$1,995

Prospex Sea 1968 Heritage Diver's GMT$1,500

Full specifications

Case

8 specs

Crystal & Dial

5 specs

Crystal Shape

Domed

Flat

AR Coating

Underside

Anti-reflective coating on inner surface

Dial Color

Silver

Black

Indices

—

Applied

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

5 specs

Caliber

Sellita SW210-1

6R54

Type

Manual

Automatic

Beat Rate

0 vph

28,800 vph

Power Reserve

45h

72h

Jewels

Pricing

1 specs

MSRP

$1,995

$1,500

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