Which is cheaper, the Oblvlo GCM Mechanical or the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic?

At MSRP the Oblvlo GCM Mechanical is the cheaper of the two at $231, against $3,250 for the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic — a $3,019 gap before any retailer discounting.

Which is bigger, the Oblvlo GCM Mechanical or the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic?

The Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic wears larger at 46mm versus 41mm for the Oblvlo GCM Mechanical — a 5mm difference across the dial.

Which has better water resistance, the Oblvlo GCM Mechanical or the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic?

The Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic is rated to 300m versus 50m for the Oblvlo GCM Mechanical.

Which has a longer power reserve, the Oblvlo GCM Mechanical or the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic?

The Oblvlo GCM Mechanical carries a 42-hour power reserve against 40 hours on the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic.

What movement does the Oblvlo GCM Mechanical run compared to the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic?

Both watches run automatic movements — the Oblvlo GCM Mechanical uses the Miyota 82S5 and the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic uses the Sellita SW220-1.

Side by side

Oblvlo GCM MechanicalvsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

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

Oblvlo GCM Mechanical

GCM-MUT

MSRP $231

Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

46mm-anthracite-large-divers-automatic-jdd

MSRP $3,250

At a glance

12 of 29 specs differ

Diameter

GCM Mechanical41mm

JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm

Power Reserve

GCM Mechanical42h

JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h

Water Resistance

GCM Mechanical50m

JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m

MSRP

GCM Mechanical$231

JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Dial Color

Black

Anthracite

Lume

Super-LumiNova

None

Movement

2 specs

Caliber

Miyota 82S5

Sellita SW220-1

Power Reserve

42h

40h

Pricing

1 specs

MSRP

$231

$3,250

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