Which is cheaper, the Casio EFS-S650D or the Unimatic Modello Uno UT1-BSTN Collab Diver?

At MSRP the Casio EFS-S650D is the cheaper of the two at $250, against $680 for the Unimatic Modello Uno UT1-BSTN Collab Diver — a $430 gap before any retailer discounting.

Which is bigger, the Casio EFS-S650D or the Unimatic Modello Uno UT1-BSTN Collab Diver?

The Unimatic Modello Uno UT1-BSTN Collab Diver wears larger at 41.5mm versus 40.9mm for the Casio EFS-S650D — a 0.6mm difference across the dial.

Which has better water resistance, the Casio EFS-S650D or the Unimatic Modello Uno UT1-BSTN Collab Diver?

The Unimatic Modello Uno UT1-BSTN Collab Diver is rated to 300m versus 100m for the Casio EFS-S650D.

Side by side

Casio EFS-S650DvsUnimatic Modello Uno UT1-BSTN Collab Diver

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

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Casio EFS-S650D

EFS-S650D

MSRP $250

See the full EFS-S650D

Unimatic Modello Uno UT1-BSTN Collab Diver

ut1-bstn

MSRP $680

See the full Modello Uno UT1-BSTN Collab Diver

At a glance

13 of 29 specs differ

Diameter

EFS-S650D40.9mm

Modello Uno UT1-BSTN Collab Diver41.5mm

Power Reserve

EFS-S650D—

Modello Uno UT1-BSTN Collab Diver—

Water Resistance

EFS-S650D100m

Modello Uno UT1-BSTN Collab Diver300m

MSRP

EFS-S650D$250

Modello Uno UT1-BSTN Collab Diver$680

Full specifications

Case

8 specs

Crystal & Dial

2 specs

Crystal

Sapphire

—

AR Coating

Yes

—

Movement

2 specs

Caliber

—

Seiko VH31 (quartz)

Power Reserve

—

Pricing

1 specs

MSRP

$250

$680

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At a glance

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