Which is bigger, the Citizen Atomic Perpetual A-T or the Oak & Oscar The Humboldt GMT USSS Edition?

The Citizen Atomic Perpetual A-T wears larger at 41mm versus 39.5mm for the Oak & Oscar The Humboldt GMT USSS Edition — a 1.5mm difference across the dial.

Which has a longer power reserve, the Citizen Atomic Perpetual A-T or the Oak & Oscar The Humboldt GMT USSS Edition?

The Oak & Oscar The Humboldt GMT USSS Edition carries a 56 hours-hour power reserve against 40 hours on the Citizen Atomic Perpetual A-T.

What movement does the Citizen Atomic Perpetual A-T run compared to the Oak & Oscar The Humboldt GMT USSS Edition?

The Citizen Atomic Perpetual A-T runs a solar caliber (H800), while the Oak & Oscar The Humboldt GMT USSS Edition runs a automatic (Sellita SW330).

Side by side

Citizen Atomic Perpetual A-TvsOak & Oscar The Humboldt GMT USSS Edition

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

Citizen Atomic Perpetual A-T

AT8300

Oak & Oscar The Humboldt GMT USSS Edition

HMBDLTGMTUSSS

MSRP $2,200

At a glance

14 of 29 specs differ

Diameter

Atomic Perpetual A-T41mm

The Humboldt GMT USSS Edition39.5mm

Power Reserve

Atomic Perpetual A-T40h

The Humboldt GMT USSS Edition56 hoursh

Water Resistance

Atomic Perpetual A-T200m

The Humboldt GMT USSS Edition200m

MSRP

Atomic Perpetual A-T—

The Humboldt GMT USSS Edition$2,200

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Double-domed

AR Coating

Underside

Inner

Dial Color

Blue

Black

Lume

None

Super-LumiNova BGW9

Movement

3 specs

Caliber

H800

Sellita SW330

Type

Solar

Automatic

Power Reserve

40h

56 hoursh

Pricing

1 specs

MSRP

—

$2,200

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