Which is cheaper, the Oak & Oscar The Humboldt GMT Titanium or the Spinnaker Bradner GMT?

At MSRP the Spinnaker Bradner GMT is the cheaper of the two at $299, against $2,950 for the Oak & Oscar The Humboldt GMT Titanium — a $2,651 gap before any retailer discounting.

Which is bigger, the Oak & Oscar The Humboldt GMT Titanium or the Spinnaker Bradner GMT?

The Spinnaker Bradner GMT wears larger at 42mm versus 39.5mm for the Oak & Oscar The Humboldt GMT Titanium — a 2.5mm difference across the dial.

Which has better water resistance, the Oak & Oscar The Humboldt GMT Titanium or the Spinnaker Bradner GMT?

The Oak & Oscar The Humboldt GMT Titanium is rated to 200m versus 180m for the Spinnaker Bradner GMT.

Which has a longer power reserve, the Oak & Oscar The Humboldt GMT Titanium or the Spinnaker Bradner GMT?

The Spinnaker Bradner GMT carries a 40-hour power reserve against 56 hours hours on the Oak & Oscar The Humboldt GMT Titanium.

What movement does the Oak & Oscar The Humboldt GMT Titanium run compared to the Spinnaker Bradner GMT?

Both watches run automatic movements — the Oak & Oscar The Humboldt GMT Titanium uses the Sellita SW330 and the Spinnaker Bradner GMT uses the Seiko NH34A.

Side by side

Oak & Oscar The Humboldt GMT TitaniumvsSpinnaker Bradner GMT

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

Oak & Oscar The Humboldt GMT Titanium

HMBDLTGMTTI

MSRP $2,950

Spinnaker Bradner GMT

bradner-gmt-automatic-abbott-brown-sp-5121-22

MSRP $299

At a glance

15 of 29 specs differ

Diameter

The Humboldt GMT Titanium39.5mm

Bradner GMT42mm

Power Reserve

The Humboldt GMT Titanium56 hoursh

Bradner GMT40h

Water Resistance

The Humboldt GMT Titanium200m

Bradner GMT180m

MSRP

The Humboldt GMT Titanium$2,950

Bradner GMT$299

Full specifications

Case

7 specs

Diameter

39.5mm

42mm

Thickness

12.5mm

15mm

Lug-to-Lug

46.8mm

50mm

Lug Width

20mm

22mm

Material

Grade 5 Titanium

316L Stainless Steel

Water Resistance

200m

180m

Caseback

Solid screw-down

Solid

Crystal & Dial

4 specs

Crystal Shape

Double-domed

Flat

AR Coating

Underside

Inner

Dial Color

Green

Brown

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

Sellita SW330

Seiko NH34A

Beat Rate

4 vph

28,800 vph

Power Reserve

56 hoursh

40h

Pricing

1 specs

MSRP

$2,950

$299

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