Which is cheaper, the Bremont Altitude Perpetual Calendar GMT or the Grand Seiko SBGD223?

At MSRP the Bremont Altitude Perpetual Calendar GMT is the cheaper of the two at $38,450, against $320,000 for the Grand Seiko SBGD223 — a $281,550 gap before any retailer discounting.

Which is bigger, the Bremont Altitude Perpetual Calendar GMT or the Grand Seiko SBGD223?

The Grand Seiko SBGD223 wears larger at 44.5mm versus 42mm for the Bremont Altitude Perpetual Calendar GMT — a 2.5mm difference across the dial.

Which has a longer power reserve, the Bremont Altitude Perpetual Calendar GMT or the Grand Seiko SBGD223?

The Grand Seiko SBGD223 carries a 192-hour power reserve against 40 hours on the Bremont Altitude Perpetual Calendar GMT.

What movement does the Bremont Altitude Perpetual Calendar GMT run compared to the Grand Seiko SBGD223?

The Bremont Altitude Perpetual Calendar GMT runs a automatic caliber, while the Grand Seiko SBGD223 runs a spring drive (9R01).

Side by side

Bremont Altitude Perpetual Calendar GMTvsGrand Seiko SBGD223

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

Bremont Altitude Perpetual Calendar GMT

alt42-per-ti-bl-b

MSRP $38,450

Grand Seiko SBGD223

sbgd223j

MSRP $320,000

At a glance

13 of 29 specs differ

Diameter

Altitude Perpetual Calendar GMT42mm

SBGD22344.5mm

Power Reserve

Altitude Perpetual Calendar GMT40h

SBGD223192h

Water Resistance

Altitude Perpetual Calendar GMT—

SBGD223100m

MSRP

Altitude Perpetual Calendar GMT$38,450

SBGD223$320,000

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

Blue

Black

Movement

3 specs

Caliber

—

9R01

Type

Automatic

Spring Drive

Power Reserve

40h

192h

Pricing

1 specs

MSRP

$38,450

$320,000

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