Which is cheaper, the Oblvlo JM Tourbillon or the Sheffield 1A?

At MSRP the Sheffield 1A is the cheaper of the two at $223, against $516 for the Oblvlo JM Tourbillon — a $293 gap before any retailer discounting.

Which is bigger, the Oblvlo JM Tourbillon or the Sheffield 1A?

The Oblvlo JM Tourbillon wears larger at 42mm versus 40mm for the Sheffield 1A — a 2mm difference across the dial.

Which has better water resistance, the Oblvlo JM Tourbillon or the Sheffield 1A?

The Sheffield 1A is rated to 200m versus 50m for the Oblvlo JM Tourbillon.

What movement does the Oblvlo JM Tourbillon run compared to the Sheffield 1A?

Both watches run automatic movements — the Oblvlo JM Tourbillon uses the OBL.8024 and the Sheffield 1A uses the Seiko NH35A.

Side by side

Oblvlo JM TourbillonvsSheffield 1A

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

Add a watch

Oblvlo JM Tourbillon

JM-TB

MSRP $516

Sheffield 1A

diver-1a-40mm-white

MSRP $223

At a glance

11 of 29 specs differ

Diameter

JM Tourbillon42mm

1A40mm

Power Reserve

JM Tourbillon65h

1A—

Water Resistance

JM Tourbillon50m

1A200m

MSRP

JM Tourbillon$516

1A$223

Full specifications

Case

4 specs

Crystal & Dial

2 specs

Dial Color

Black

White/Blue

Lume

Super-LumiNova

Swiss blue lume

Movement

4 specs

Caliber

OBL.8024

Seiko NH35A

Power Reserve

65h

—

Jewels

Complications

Tourbillon

None

Pricing

1 specs

MSRP

$516

$223

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Oblvlo JM TourbillonvsSheffield 1A

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