Which is cheaper, the Nezumi Studios Aviator or the Grand Seiko SBGE253?

At MSRP the Nezumi Studios Aviator is the cheaper of the two at $685, against $6,900 for the Grand Seiko SBGE253 — a $6,215 gap before any retailer discounting.

Which is bigger, the Nezumi Studios Aviator or the Grand Seiko SBGE253?

The Grand Seiko SBGE253 wears larger at 40.5mm versus 40mm for the Nezumi Studios Aviator — a 0.5mm difference across the dial.

Which has a longer power reserve, the Nezumi Studios Aviator or the Grand Seiko SBGE253?

The Grand Seiko SBGE253 carries a 72-hour power reserve against 42h hours on the Nezumi Studios Aviator.

What movement does the Nezumi Studios Aviator run compared to the Grand Seiko SBGE253?

The Nezumi Studios Aviator runs a automatic caliber (Miyota 9075), while the Grand Seiko SBGE253 runs a spring drive (9R66).

Side by side

Nezumi Studios AviatorvsGrand Seiko SBGE253

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

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Nezumi Studios Aviator

aviera-gmt-ref-aa3-133

MSRP $685

Grand Seiko SBGE253

sbge253g

MSRP $6,900

Buy from Nezumi Studios ↗

Buy used on eBay ↗

Buy from Grand Seiko ↗

Buy used on eBay ↗

At a glance

11 of 29 specs differ

Diameter

Aviator40mm

SBGE25340.5mm

Power Reserve

Aviator42hh

SBGE25372h

Water Resistance

Aviator200m

SBGE253200m

MSRP

Aviator$685

SBGE253$6,900

Full specifications

Case

4 specs

Crystal & Dial

3 specs

AR Coating

Inner

Yes

Dial Color

—

Black

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

Miyota 9075

9R66

Type

Automatic

Spring Drive

Power Reserve

42hh

72h

Pricing

1 specs

MSRP

—

$6,900

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Nezumi Studios AviatorvsGrand Seiko SBGE253

At a glance

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