Which is cheaper, the Grand Seiko SLGB005 or the Seiko Essentials Roman Numeral (Ladies)?

At MSRP the Seiko Essentials Roman Numeral (Ladies) is the cheaper of the two at $350, against $11,100 for the Grand Seiko SLGB005 — a $10,750 gap before any retailer discounting.

Which is bigger, the Grand Seiko SLGB005 or the Seiko Essentials Roman Numeral (Ladies)?

The Grand Seiko SLGB005 wears larger at 37mm versus 29.6mm for the Seiko Essentials Roman Numeral (Ladies) — a 7.4mm difference across the dial.

Which has better water resistance, the Grand Seiko SLGB005 or the Seiko Essentials Roman Numeral (Ladies)?

The Grand Seiko SLGB005 is rated to 100m versus 5m for the Seiko Essentials Roman Numeral (Ladies).

Which has a longer power reserve, the Grand Seiko SLGB005 or the Seiko Essentials Roman Numeral (Ladies)?

The Grand Seiko SLGB005 carries a 72-hour power reserve against 40 hours on the Seiko Essentials Roman Numeral (Ladies).

What movement does the Grand Seiko SLGB005 run compared to the Seiko Essentials Roman Numeral (Ladies)?

The Grand Seiko SLGB005 runs a spring drive caliber (9RB2), while the Seiko Essentials Roman Numeral (Ladies) runs a quartz (6N01).

Side by side

Grand Seiko SLGB005vsSeiko Essentials Roman Numeral (Ladies)

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

Grand Seiko SLGB005

slgb005g

MSRP $11,100

Seiko Essentials Roman Numeral (Ladies)

sur609

MSRP $350

At a glance

10 of 29 specs differ

Diameter

SLGB00537mm

Essentials Roman Numeral (Ladies)29.6mm

Power Reserve

SLGB00572h

Essentials Roman Numeral (Ladies)40h

Water Resistance

SLGB005100m

Essentials Roman Numeral (Ladies)50m

MSRP

SLGB005$11,100

Essentials Roman Numeral (Ladies)$350

Full specifications

Case

5 specs

Diameter

37mm

29.6mm

Thickness

11.4mm

6.2mm

Lug-to-Lug

44.3mm

37.7mm

Lug Width

20mm

14mm

Water Resistance

100m

50m

Crystal & Dial

1 specs

AR Coating

Yes

Inner

Movement

3 specs

Caliber

9RB2

6N01

Type

Spring Drive

Quartz

Power Reserve

72h

40h

Pricing

1 specs

MSRP

$11,100

$350

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