Which is cheaper, the Bremont Altitude Perpetual Calendar GMT or the Seestern S424 Full Lume Pilot?

At MSRP the Seestern S424 Full Lume Pilot is the cheaper of the two at $299, against $38,450 for the Bremont Altitude Perpetual Calendar GMT — a $38,151 gap before any retailer discounting.

Which is bigger, the Bremont Altitude Perpetual Calendar GMT or the Seestern S424 Full Lume Pilot?

The Bremont Altitude Perpetual Calendar GMT wears larger at 42mm versus 38mm for the Seestern S424 Full Lume Pilot — a 4mm difference across the dial.

Which has a longer power reserve, the Bremont Altitude Perpetual Calendar GMT or the Seestern S424 Full Lume Pilot?

The Seestern S424 Full Lume Pilot carries a 41-hour power reserve against 40 hours on the Bremont Altitude Perpetual Calendar GMT.

Side by side

Bremont Altitude Perpetual Calendar GMTvsSeestern S424 Full Lume Pilot

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

Seestern S424 Full Lume Pilot

S424 V1

MSRP $299

At a glance

15 of 29 specs differ

Diameter

Altitude Perpetual Calendar GMT42mm

S424 Full Lume Pilot38mm

Power Reserve

Altitude Perpetual Calendar GMT40h

S424 Full Lume Pilot41h

Water Resistance

Altitude Perpetual Calendar GMT—

S424 Full Lume Pilot50m

MSRP

Altitude Perpetual Calendar GMT$38,450

S424 Full Lume Pilot$299

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Dial Color

Blue

Black

Lume

None

Full lume

Movement

5 specs

Caliber

—

Seiko NH35A

Beat Rate

28,800 vph

21,600 vph

Power Reserve

40h

41h

Jewels

Complications

None

GMT

Pricing

1 specs

MSRP

$38,450

$299

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