Which is cheaper, the AVI-8 Hawker Hunter Atlas GMT Automatic or the Grand Seiko SLGB023?

At MSRP the AVI-8 Hawker Hunter Atlas GMT Automatic is the cheaper of the two at $365, against $12,400 for the Grand Seiko SLGB023 — a $12,035 gap before any retailer discounting.

Which is bigger, the AVI-8 Hawker Hunter Atlas GMT Automatic or the Grand Seiko SLGB023?

The AVI-8 Hawker Hunter Atlas GMT Automatic wears larger at 44mm versus 40.8mm for the Grand Seiko SLGB023 — a 3.2mm difference across the dial.

Which has better water resistance, the AVI-8 Hawker Hunter Atlas GMT Automatic or the Grand Seiko SLGB023?

The Grand Seiko SLGB023 is rated to 300m versus 50m for the AVI-8 Hawker Hunter Atlas GMT Automatic.

Which has a longer power reserve, the AVI-8 Hawker Hunter Atlas GMT Automatic or the Grand Seiko SLGB023?

The Grand Seiko SLGB023 carries a 72-hour power reserve against 40 hours on the AVI-8 Hawker Hunter Atlas GMT Automatic.

What movement does the AVI-8 Hawker Hunter Atlas GMT Automatic run compared to the Grand Seiko SLGB023?

The AVI-8 Hawker Hunter Atlas GMT Automatic runs a automatic caliber, while the Grand Seiko SLGB023 runs a spring drive (9RB1).

Side by side

AVI-8 Hawker Hunter Atlas GMT AutomaticvsGrand Seiko SLGB023

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

AVI-8 Hawker Hunter Atlas GMT Automatic

hawker-hunter-atlas-gmt-automatic-devil-black-av-4122-01

MSRP $365

Grand Seiko SLGB023

slgb023g

MSRP $12,400

At a glance

13 of 29 specs differ

Diameter

Hawker Hunter Atlas GMT Automatic44mm

SLGB02340.8mm

Power Reserve

Hawker Hunter Atlas GMT Automatic40h

SLGB02372h

Water Resistance

Hawker Hunter Atlas GMT Automatic50m

SLGB023300m

MSRP

Hawker Hunter Atlas GMT Automatic$365

SLGB023$12,400

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Crystal

Mineral

Sapphire

AR Coating

Inner

Yes

Movement

3 specs

Caliber

—

9RB1

Type

Automatic

Spring Drive

Power Reserve

40h

72h

Pricing

1 specs

MSRP

$365

$12,400

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