Which is cheaper, the Helgray GMT (Refurbished) or the Oak & Oscar The Humboldt GMT?

At MSRP the Helgray GMT (Refurbished) is the cheaper of the two at $150, against $2,175 for the Oak & Oscar The Humboldt GMT — a $2,025 gap before any retailer discounting.

Which is bigger, the Helgray GMT (Refurbished) or the Oak & Oscar The Humboldt GMT?

The Helgray GMT (Refurbished) wears larger at 42mm versus 39.5mm for the Oak & Oscar The Humboldt GMT — a 2.5mm difference across the dial.

Which has better water resistance, the Helgray GMT (Refurbished) or the Oak & Oscar The Humboldt GMT?

The Oak & Oscar The Humboldt GMT is rated to 200m versus 50m for the Helgray GMT (Refurbished).

Which has a longer power reserve, the Helgray GMT (Refurbished) or the Oak & Oscar The Humboldt GMT?

The Oak & Oscar The Humboldt GMT carries a 56 hours-hour power reserve against 40 hours on the Helgray GMT (Refurbished).

What movement does the Helgray GMT (Refurbished) run compared to the Oak & Oscar The Humboldt GMT?

The Helgray GMT (Refurbished) runs a quartz caliber (Swiss-Made Ronda 515.24H Strap), while the Oak & Oscar The Humboldt GMT runs a automatic (Sellita SW330).

Side by side

Helgray GMT (Refurbished)vsOak & Oscar The Humboldt GMT

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

Helgray GMT (Refurbished)

gmt-1

MSRP $150

Oak & Oscar The Humboldt GMT

HMBDLTGMT

MSRP $2,175

At a glance

16 of 29 specs differ

Diameter

GMT (Refurbished)42mm

The Humboldt GMT39.5mm

Power Reserve

GMT (Refurbished)40h

The Humboldt GMT56 hoursh

Water Resistance

GMT (Refurbished)50m

The Humboldt GMT200m

MSRP

GMT (Refurbished)$150

The Humboldt GMT$2,175

Full specifications

Case

7 specs

Diameter

42mm

39.5mm

Thickness

12mm

12.5mm

Lug-to-Lug

46mm

46.8mm

Material

Stainless Steel

316L Stainless Steel

Finish

Brushed and polished

Brushed

Water Resistance

50m

200m

Caseback

Solid

Solid screw-down

Crystal & Dial

4 specs

Crystal Shape

Flat

Double-domed

AR Coating

Inner

Underside

Dial Color

Black

White

Lume

None

Super-LumiNova

Movement

4 specs

Caliber

Swiss-Made Ronda 515.24H Strap

Sellita SW330

Type

Quartz

Automatic

Beat Rate

28,800 vph

4 vph

Power Reserve

40h

56 hoursh

Pricing

1 specs

MSRP

$150

$2,175

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