Which is cheaper, the Oak & Oscar The Humboldt GMT USSS Edition or the Zelos Helica?

At MSRP the Zelos Helica is the cheaper of the two at $499, against $2,200 for the Oak & Oscar The Humboldt GMT USSS Edition — a $1,701 gap before any retailer discounting.

Which is bigger, the Oak & Oscar The Humboldt GMT USSS Edition or the Zelos Helica?

The Oak & Oscar The Humboldt GMT USSS Edition wears larger at 39.5mm versus 39mm for the Zelos Helica — a 0.5mm difference across the dial.

Which has better water resistance, the Oak & Oscar The Humboldt GMT USSS Edition or the Zelos Helica?

The Oak & Oscar The Humboldt GMT USSS Edition is rated to 200m versus 100m for the Zelos Helica.

Which has a longer power reserve, the Oak & Oscar The Humboldt GMT USSS Edition or the Zelos Helica?

The Zelos Helica carries a 40-hour power reserve against 56 hours hours on the Oak & Oscar The Humboldt GMT USSS Edition.

What movement does the Oak & Oscar The Humboldt GMT USSS Edition run compared to the Zelos Helica?

Both watches run automatic movements — the Oak & Oscar The Humboldt GMT USSS Edition uses the Sellita SW330 and the Zelos Helica uses the Miyota 9015.

Side by side

Oak & Oscar The Humboldt GMT USSS EditionvsZelos Helica

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

Oak & Oscar The Humboldt GMT USSS Edition

HMBDLTGMTUSSS

MSRP $2,200

Zelos Helica

helica-wave-mop

MSRP $499

At a glance

12 of 29 specs differ

Diameter

The Humboldt GMT USSS Edition39.5mm

Helica39mm

Power Reserve

The Humboldt GMT USSS Edition56 hoursh

Helica40h

Water Resistance

The Humboldt GMT USSS Edition200m

Helica100m

MSRP

The Humboldt GMT USSS Edition$2,200

Helica$499

Full specifications

Case

6 specs

Crystal & Dial

3 specs

Crystal Shape

Double-domed

Flat

Dial Color

Black

39 - Wave MOP

Lume

Super-LumiNova BGW9

None

Movement

2 specs

Caliber

Sellita SW330

Miyota 9015

Power Reserve

56 hoursh

40h

Pricing

1 specs

MSRP

$2,200

$499

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