Which is cheaper, the Oblvlo GCM Mechanical or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

At MSRP the Oblvlo GCM Mechanical is the cheaper of the two at $231, against $1,300 for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a $1,069 gap before any retailer discounting.

Which is bigger, the Oblvlo GCM Mechanical or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Oblvlo GCM Mechanical wears larger at 41mm versus 40mm for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a 1mm difference across the dial.

Which has better water resistance, the Oblvlo GCM Mechanical or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch is rated to 300m versus 50m for the Oblvlo GCM Mechanical.

Which has a longer power reserve, the Oblvlo GCM Mechanical or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch carries a 72-hour power reserve against 42 hours on the Oblvlo GCM Mechanical.

What movement does the Oblvlo GCM Mechanical run compared to the Seiko Prospex Sea 1965 Heritage Diver's Watch?

Both watches run automatic movements — the Oblvlo GCM Mechanical uses the Miyota 82S5 and the Seiko Prospex Sea 1965 Heritage Diver's Watch uses the 6R55.

Side by side

Oblvlo GCM MechanicalvsSeiko Prospex Sea 1965 Heritage Diver's Watch

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

Add a watch

Oblvlo GCM Mechanical

GCM-MUT

MSRP $231

Seiko Prospex Sea 1965 Heritage Diver's Watch

spb451j1

MSRP $1,300

At a glance

13 of 29 specs differ

Diameter

GCM Mechanical41mm

Prospex Sea 1965 Heritage Diver's Watch40mm

Power Reserve

GCM Mechanical42h

Prospex Sea 1965 Heritage Diver's Watch72h

Water Resistance

GCM Mechanical50m

Prospex Sea 1965 Heritage Diver's Watch300m

MSRP

GCM Mechanical$231

Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

6 specs

Crystal & Dial

3 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

Super-LumiNova

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Miyota 82S5

6R55

Power Reserve

42h

72h

Jewels

Pricing

1 specs

MSRP

$231

$1,300

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Oblvlo GCM MechanicalvsSeiko Prospex Sea 1965 Heritage Diver's Watch

At a glance

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