Which is cheaper, the Grand Seiko SBGA385 or the Zelos Aurora Field?

At MSRP the Zelos Aurora Field is the cheaper of the two at $529, against $53,000 for the Grand Seiko SBGA385 — a $52,471 gap before any retailer discounting.

Which is bigger, the Grand Seiko SBGA385 or the Zelos Aurora Field?

The Zelos Aurora Field wears larger at 42mm versus 40mm for the Grand Seiko SBGA385 — a 2mm difference across the dial.

Which has better water resistance, the Grand Seiko SBGA385 or the Zelos Aurora Field?

The Zelos Aurora Field is rated to 200m versus 100m for the Grand Seiko SBGA385.

Which has a longer power reserve, the Grand Seiko SBGA385 or the Zelos Aurora Field?

The Grand Seiko SBGA385 carries a 72-hour power reserve against 40 hours on the Zelos Aurora Field.

What movement does the Grand Seiko SBGA385 run compared to the Zelos Aurora Field?

The Grand Seiko SBGA385 runs a spring drive caliber (9R15), while the Zelos Aurora Field runs a automatic (Miyota 9039).

Side by side

Grand Seiko SBGA385vsZelos Aurora Field

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

Grand Seiko SBGA385

sbga385g

MSRP $53,000

Zelos Aurora Field

aurora-field-42mm-br-oynx

MSRP $529

At a glance

13 of 29 specs differ

Diameter

SBGA38540mm

Aurora Field42mm

Power Reserve

SBGA38572h

Aurora Field40h

Water Resistance

SBGA385100m

Aurora Field200m

MSRP

SBGA385$53,000

Aurora Field$529

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Yes

Inner

Dial Color

Black

Bronze

Movement

3 specs

Caliber

9R15

Miyota 9039

Type

Spring Drive

Automatic

Power Reserve

72h

40h

Pricing

1 specs

MSRP

$53,000

$529

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Grand Seiko SBGA385vsZelos Aurora Field

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Full specifications

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