Which is cheaper, the Oblvlo JM Tourbillon or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

At MSRP the Oblvlo JM Tourbillon is the cheaper of the two at $516, against $1,350 for the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition — a $834 gap before any retailer discounting.

Which is bigger, the Oblvlo JM Tourbillon or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition wears larger at 42.7mm versus 42mm for the Oblvlo JM Tourbillon — a 0.7mm difference across the dial.

Which has better water resistance, the Oblvlo JM Tourbillon or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition is rated to 200m versus 50m for the Oblvlo JM Tourbillon.

Which has a longer power reserve, the Oblvlo JM Tourbillon or the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition carries a 70-hour power reserve against 65 hours on the Oblvlo JM Tourbillon.

What movement does the Oblvlo JM Tourbillon run compared to the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition?

Both watches run automatic movements — the Oblvlo JM Tourbillon uses the OBL.8024 and the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition uses the 6R35.

Side by side

Oblvlo JM TourbillonvsSeiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

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

Oblvlo JM Tourbillon

JM-TB

MSRP $516

Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

spb301j1

MSRP $1,350

At a glance

13 of 29 specs differ

Diameter

JM Tourbillon42mm

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm

Power Reserve

JM Tourbillon65h

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h

Water Resistance

JM Tourbillon50m

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m

MSRP

JM Tourbillon$516

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350

Full specifications

Case

5 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

4 specs

Caliber

OBL.8024

6R35

Power Reserve

65h

70h

Jewels

Complications

Tourbillon

None

Pricing

1 specs

MSRP

$516

$1,350

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