Which is cheaper, the Seiko Prospex Sea 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 $900 for the Seiko Prospex Sea — a $140 gap before any retailer discounting.

Which is bigger, the Seiko Prospex Sea or the Unimatic Modello Uno UC1 Classic Diver?

The Unimatic Modello Uno UC1 Classic Diver wears larger at 41.5mm versus 41mm for the Seiko Prospex Sea — a 0.5mm difference across the dial.

Which has better water resistance, the Seiko Prospex Sea or the Unimatic Modello Uno UC1 Classic Diver?

The Unimatic Modello Uno UC1 Classic Diver is rated to 300m versus 200m for the Seiko Prospex Sea.

What movement does the Seiko Prospex Sea run compared to the Unimatic Modello Uno UC1 Classic Diver?

Both watches run automatic movements — the Seiko Prospex Sea uses the Seiko 6R35 and the Unimatic Modello Uno UC1 Classic Diver uses the Seiko NH35A (automatic).

Side by side

Seiko Prospex SeavsUnimatic 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

MSRP $900

See the full Prospex Sea

Unimatic Modello Uno UC1 Classic Diver

uc1

MSRP $760

See the full Modello Uno UC1 Classic Diver

At a glance

16 of 29 specs differ

Diameter

Prospex Sea41mm

Modello Uno UC1 Classic Diver41.5mm

Power Reserve

Prospex Sea70h

Modello Uno UC1 Classic Diver—

Water Resistance

Prospex Sea200m

Modello Uno UC1 Classic Diver300m

MSRP

Prospex Sea$900

Modello Uno UC1 Classic Diver$760

Full specifications

Case

7 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

Seiko 6R35

Seiko NH35A (automatic)

Power Reserve

70h

Jewels

Pricing

1 specs

MSRP

$900

$760

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Seiko Prospex SeavsUnimatic Modello Uno UC1 Classic Diver

At a glance

Full specifications

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