Which is cheaper, the Seiko Prospex Sea 1965 Heritage Diver's Watch or the Unimatic Modello Uno UC1 Classic Diver?

At MSRP the Unimatic Modello Uno UC1 Classic Diver is the cheaper of the two at $760, against $1,300 for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a $540 gap before any retailer discounting.

Which is bigger, the Seiko Prospex Sea 1965 Heritage Diver's Watch or the Unimatic Modello Uno UC1 Classic Diver?

The Unimatic Modello Uno UC1 Classic Diver wears larger at 41.5mm versus 40mm for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a 1.5mm difference across the dial.

What movement does the Seiko Prospex Sea 1965 Heritage Diver's Watch run compared to the Unimatic Modello Uno UC1 Classic Diver?

Both watches run automatic movements — the Seiko Prospex Sea 1965 Heritage Diver's Watch uses the 6R55 and the Unimatic Modello Uno UC1 Classic Diver uses the Seiko NH35A (automatic).

Side by side

Seiko Prospex Sea 1965 Heritage Diver's WatchvsUnimatic Modello Uno UC1 Classic Diver

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

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Seiko Prospex Sea 1965 Heritage Diver's Watch

MSRP $1,300

See the full Prospex Sea 1965 Heritage Diver's Watch

Unimatic Modello Uno UC1 Classic Diver

uc1

MSRP $760

See the full Modello Uno UC1 Classic Diver

At a glance

15 of 29 specs differ

Diameter

Prospex Sea 1965 Heritage Diver's Watch40mm

Modello Uno UC1 Classic Diver41.5mm

Power Reserve

Prospex Sea 1965 Heritage Diver's Watch72h

Modello Uno UC1 Classic Diver—

Water Resistance

Prospex Sea 1965 Heritage Diver's Watch300m

Modello Uno UC1 Classic Diver300m

MSRP

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

Modello Uno UC1 Classic Diver$760

Full specifications

Case

6 specs

Crystal & Dial

5 specs

Crystal

Sapphire

—

Crystal Shape

Curved

—

AR Coating

Anti-reflective coating on inner surface

—

Dial Color

—

Matte black

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

3 specs

Caliber

6R55

Seiko NH35A (automatic)

Power Reserve

72h

Jewels

Pricing

1 specs

MSRP

$1,300

$760

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Seiko Prospex Sea 1965 Heritage Diver's WatchvsUnimatic Modello Uno UC1 Classic Diver

At a glance

Full specifications

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