Which is cheaper, the Oak & Oscar The Humboldt GMT USSS Edition or the Grand Seiko SLGH005?

At MSRP the Oak & Oscar The Humboldt GMT USSS Edition is the cheaper of the two at $2,200, against $9,800 for the Grand Seiko SLGH005 — a $7,600 gap before any retailer discounting.

Which is bigger, the Oak & Oscar The Humboldt GMT USSS Edition or the Grand Seiko SLGH005?

The Grand Seiko SLGH005 wears larger at 40mm versus 39.5mm for the Oak & Oscar The Humboldt GMT USSS Edition — a 0.5mm difference across the dial.

Which has better water resistance, the Oak & Oscar The Humboldt GMT USSS Edition or the Grand Seiko SLGH005?

The Oak & Oscar The Humboldt GMT USSS Edition is rated to 200m versus 100m for the Grand Seiko SLGH005.

Which has a longer power reserve, the Oak & Oscar The Humboldt GMT USSS Edition or the Grand Seiko SLGH005?

The Grand Seiko SLGH005 carries a 80-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 Grand Seiko SLGH005?

Both watches run automatic movements — the Oak & Oscar The Humboldt GMT USSS Edition uses the Sellita SW330 and the Grand Seiko SLGH005 uses the 9SA5.

Side by side

Oak & Oscar The Humboldt GMT USSS EditionvsGrand Seiko SLGH005

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

Grand Seiko SLGH005

slgh005g

MSRP $9,800

At a glance

14 of 29 specs differ

Diameter

The Humboldt GMT USSS Edition39.5mm

SLGH00540mm

Power Reserve

The Humboldt GMT USSS Edition56 hoursh

SLGH00580h

Water Resistance

The Humboldt GMT USSS Edition200m

SLGH005100m

MSRP

The Humboldt GMT USSS Edition$2,200

SLGH005$9,800

Full specifications

Case

8 specs

Crystal & Dial

3 specs

Crystal Shape

Double-domed

Flat

AR Coating

Inner

Yes

Lume

Super-LumiNova BGW9

None

Movement

2 specs

Caliber

Sellita SW330

9SA5

Power Reserve

56 hoursh

80h

Pricing

1 specs

MSRP

$2,200

$9,800

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