Which is cheaper, the Hamilton Jazzmaster Performer Automatic or the Grand Seiko SBGW306?

At MSRP the Hamilton Jazzmaster Performer Automatic is the cheaper of the two at $1,245, against $17,900 for the Grand Seiko SBGW306 — a $16,655 gap before any retailer discounting.

Which is bigger, the Hamilton Jazzmaster Performer Automatic or the Grand Seiko SBGW306?

The Hamilton Jazzmaster Performer Automatic wears larger at 38mm versus 36.5mm for the Grand Seiko SBGW306 — a 1.5mm difference across the dial.

Which has a longer power reserve, the Hamilton Jazzmaster Performer Automatic or the Grand Seiko SBGW306?

The Hamilton Jazzmaster Performer Automatic carries a 80-hour power reserve against 72 hours on the Grand Seiko SBGW306.

What movement does the Hamilton Jazzmaster Performer Automatic run compared to the Grand Seiko SBGW306?

The Hamilton Jazzmaster Performer Automatic runs a automatic caliber (H-10), while the Grand Seiko SBGW306 runs a manual (9S64).

Side by side

Hamilton Jazzmaster Performer AutomaticvsGrand Seiko SBGW306

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

Hamilton Jazzmaster Performer Automatic

h36235140

MSRP $1,245

Grand Seiko SBGW306

sbgw306j

MSRP $17,900

At a glance

11 of 29 specs differ

Diameter

Jazzmaster Performer Automatic38mm

SBGW30636.5mm

Power Reserve

Jazzmaster Performer Automatic80h

SBGW30672h

Water Resistance

Jazzmaster Performer Automatic100m

SBGW306100m

MSRP

Jazzmaster Performer Automatic$1,245

SBGW306$17,900

Full specifications

Case

5 specs

Diameter

38mm

36.5mm

Thickness

11.47mm

11.7mm

Lug-to-Lug

46mm

42.7mm

Lug Width

20mm

18mm

Material

Stainless Steel

Gold

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

Blue

Black

Movement

3 specs

Caliber

H-10

9S64

Type

Automatic

Manual

Power Reserve

80h

72h

Pricing

1 specs

MSRP

$1,245

$17,900

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