Which is bigger, the Spinnaker Cahill Automatic or the Seiko Essentials Roman Numeral (Ladies)?

The Spinnaker Cahill Automatic wears larger at 42mm versus 29.6mm for the Seiko Essentials Roman Numeral (Ladies) — a 12.4mm difference across the dial.

Which has better water resistance, the Spinnaker Cahill Automatic or the Seiko Essentials Roman Numeral (Ladies)?

The Spinnaker Cahill Automatic is rated to 200m versus 5m for the Seiko Essentials Roman Numeral (Ladies).

What movement does the Spinnaker Cahill Automatic run compared to the Seiko Essentials Roman Numeral (Ladies)?

The Spinnaker Cahill Automatic runs a automatic caliber (SII NH35A), while the Seiko Essentials Roman Numeral (Ladies) runs a quartz (6N01).

Side by side

Spinnaker Cahill AutomaticvsSeiko Essentials Roman Numeral (Ladies)

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

Spinnaker Cahill Automatic

cahill-automatic-moss-green-sp-5064-02

MSRP $350

Seiko Essentials Roman Numeral (Ladies)

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MSRP $350

At a glance

10 of 29 specs differ

Diameter

Cahill Automatic42mm

Essentials Roman Numeral (Ladies)29.6mm

Power Reserve

Cahill Automatic40h

Essentials Roman Numeral (Ladies)40h

Water Resistance

Cahill Automatic200m

Essentials Roman Numeral (Ladies)50m

MSRP

Cahill Automatic$350

Essentials Roman Numeral (Ladies)$350

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Dial Color

Green

Black

Movement

2 specs

Caliber

SII NH35A

6N01

Type

Automatic

Quartz

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