Which is cheaper, the Bremont Altitude Perpetual Calendar GMT or the Grand Seiko SBGA384?

At MSRP the Grand Seiko SBGA384 is the cheaper of the two at $29,500, against $38,450 for the Bremont Altitude Perpetual Calendar GMT — a $8,950 gap before any retailer discounting.

Which is bigger, the Bremont Altitude Perpetual Calendar GMT or the Grand Seiko SBGA384?

The Bremont Altitude Perpetual Calendar GMT wears larger at 42mm versus 40mm for the Grand Seiko SBGA384 — a 2mm difference across the dial.

Which has a longer power reserve, the Bremont Altitude Perpetual Calendar GMT or the Grand Seiko SBGA384?

The Grand Seiko SBGA384 carries a 72-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 SBGA384?

The Bremont Altitude Perpetual Calendar GMT runs a automatic caliber, while the Grand Seiko SBGA384 runs a spring drive (9R15).

Side by side

Bremont Altitude Perpetual Calendar GMTvsGrand Seiko SBGA384

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 SBGA384

sbga384g

MSRP $29,500

At a glance

13 of 29 specs differ

Diameter

Altitude Perpetual Calendar GMT42mm

SBGA38440mm

Power Reserve

Altitude Perpetual Calendar GMT40h

SBGA38472h

Water Resistance

Altitude Perpetual Calendar GMT—

SBGA384100m

MSRP

Altitude Perpetual Calendar GMT$38,450

SBGA384$29,500

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

Blue

Black

Movement

3 specs

Caliber

—

9R15

Type

Automatic

Spring Drive

Power Reserve

40h

72h

Pricing

1 specs

MSRP

$38,450

$29,500

Follow this matchup

Get a note when Bremont Altitude Perpetual Calendar GMT vs Grand Seiko SBGA384 gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring