Which is cheaper, the Hamilton American Classic Boulton Quartz or the Grand Seiko STGF387?

At MSRP the Hamilton American Classic Boulton Quartz is the cheaper of the two at $845, against $4,200 for the Grand Seiko STGF387 — a $3,355 gap before any retailer discounting.

Which is bigger, the Hamilton American Classic Boulton Quartz or the Grand Seiko STGF387?

The Hamilton American Classic Boulton Quartz wears larger at 27mm versus 26mm for the Grand Seiko STGF387 — a 1mm difference across the dial.

Which has better water resistance, the Hamilton American Classic Boulton Quartz or the Grand Seiko STGF387?

The Grand Seiko STGF387 is rated to 100m versus 30m for the Hamilton American Classic Boulton Quartz.

What movement does the Hamilton American Classic Boulton Quartz run compared to the Grand Seiko STGF387?

Both watches run quartz movements — the Hamilton American Classic Boulton Quartz uses the 980.163 and the Grand Seiko STGF387 uses the 4J51.

Side by side

Hamilton American Classic Boulton QuartzvsGrand Seiko STGF387

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

Hamilton American Classic Boulton Quartz

h13431553

MSRP $845

Grand Seiko STGF387

stgf387g

MSRP $4,200

At a glance

10 of 29 specs differ

Diameter

American Classic Boulton Quartz27mm

STGF38726mm

Power Reserve

American Classic Boulton Quartz40h

STGF38740h

Water Resistance

American Classic Boulton Quartz30m

STGF387100m

MSRP

American Classic Boulton Quartz$845

STGF387$4,200

Full specifications

Case

5 specs

Diameter

27mm

26mm

Thickness

7.8mm

8.1mm

Lug-to-Lug

46mm

32.9mm

Lug Width

18mm

13mm

Water Resistance

30m

100m

Crystal & Dial

3 specs

Crystal

Mineral

Sapphire

AR Coating

Inner

Yes

Dial Color

White

Black

Movement

1 specs

Caliber

980.163

4J51

Pricing

1 specs

MSRP

$845

$4,200

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