Which is cheaper, the Grand Seiko STGF387 or the Seiko Essentials Roman Numeral (Ladies)?

At MSRP the Seiko Essentials Roman Numeral (Ladies) is the cheaper of the two at $350, against $4,200 for the Grand Seiko STGF387 — a $3,850 gap before any retailer discounting.

Which is bigger, the Grand Seiko STGF387 or the Seiko Essentials Roman Numeral (Ladies)?

The Seiko Essentials Roman Numeral (Ladies) wears larger at 29.6mm versus 26mm for the Grand Seiko STGF387 — a 3.6mm difference across the dial.

Which has better water resistance, the Grand Seiko STGF387 or the Seiko Essentials Roman Numeral (Ladies)?

The Grand Seiko STGF387 is rated to 100m versus 5m for the Seiko Essentials Roman Numeral (Ladies).

What movement does the Grand Seiko STGF387 run compared to the Seiko Essentials Roman Numeral (Ladies)?

Both watches run quartz movements — the Grand Seiko STGF387 uses the 4J51 and the Seiko Essentials Roman Numeral (Ladies) uses the 6N01.

Side by side

Grand Seiko STGF387vsSeiko Essentials Roman Numeral (Ladies)

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

Grand Seiko STGF387

stgf387g

MSRP $4,200

Seiko Essentials Roman Numeral (Ladies)

sur609

MSRP $350

At a glance

8 of 29 specs differ

Diameter

STGF38726mm

Essentials Roman Numeral (Ladies)29.6mm

Power Reserve

STGF38740h

Essentials Roman Numeral (Ladies)40h

Water Resistance

STGF387100m

Essentials Roman Numeral (Ladies)50m

MSRP

STGF387$4,200

Essentials Roman Numeral (Ladies)$350

Full specifications

Case

5 specs

Diameter

26mm

29.6mm

Thickness

8.1mm

6.2mm

Lug-to-Lug

32.9mm

37.7mm

Lug Width

13mm

14mm

Water Resistance

100m

50m

Crystal & Dial

1 specs

AR Coating

Yes

Inner

Movement

1 specs

Caliber

4J51

6N01

Pricing

1 specs

MSRP

$4,200

$350

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