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

At MSRP the Seiko Prospex Sea is the cheaper of the two at $1,500, against $2,200 for the Oak & Oscar The Humboldt GMT USSS Edition — a $700 gap before any retailer discounting.

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

The Seiko Prospex Sea wears larger at 43.5mm versus 39.5mm for the Oak & Oscar The Humboldt GMT USSS Edition — a 4mm difference across the dial.

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

The Seiko Prospex Sea carries a 70-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 Seiko Prospex Sea?

Both watches run automatic movements — the Oak & Oscar The Humboldt GMT USSS Edition uses the Sellita SW330 and the Seiko Prospex Sea uses the 6R35.

Side by side

Oak & Oscar The Humboldt GMT USSS EditionvsSeiko Prospex Sea

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

Seiko Prospex Sea

spb349j1

MSRP $1,500

At a glance

14 of 29 specs differ

Diameter

The Humboldt GMT USSS Edition39.5mm

Prospex Sea43.5mm

Power Reserve

The Humboldt GMT USSS Edition56 hoursh

Prospex Sea70h

Water Resistance

The Humboldt GMT USSS Edition200m

Prospex Sea200m

MSRP

The Humboldt GMT USSS Edition$2,200

Prospex Sea$1,500

Full specifications

Case

7 specs

Crystal & Dial

3 specs

Crystal Shape

Double-domed

Flat

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

Super-LumiNova BGW9

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Sellita SW330

6R35

Power Reserve

56 hoursh

70h

Jewels

Pricing

1 specs

MSRP

$2,200

$1,500

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