Which is cheaper, the Oblvlo JM Rotor or the Seiko Prospex LX line?

At MSRP the Oblvlo JM Rotor is the cheaper of the two at $299, against $5,500 for the Seiko Prospex LX line — a $5,201 gap before any retailer discounting.

Which is bigger, the Oblvlo JM Rotor or the Seiko Prospex LX line?

The Seiko Prospex LX line wears larger at 44.8mm versus 42mm for the Oblvlo JM Rotor — a 2.8mm difference across the dial.

Which has better water resistance, the Oblvlo JM Rotor or the Seiko Prospex LX line?

The Oblvlo JM Rotor is rated to 50m versus 20m for the Seiko Prospex LX line.

Which has a longer power reserve, the Oblvlo JM Rotor or the Seiko Prospex LX line?

The Seiko Prospex LX line carries a 72-hour power reserve against 42 hours on the Oblvlo JM Rotor.

What movement does the Oblvlo JM Rotor run compared to the Seiko Prospex LX line?

The Oblvlo JM Rotor runs a automatic caliber (Miyota 8215), while the Seiko Prospex LX line runs a spring drive (5R66).

Side by side

Oblvlo JM RotorvsSeiko Prospex LX line

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

Oblvlo JM Rotor

JM-ROTOR

MSRP $299

Seiko Prospex LX line

snr025j1

MSRP $5,500

At a glance

14 of 29 specs differ

Diameter

JM Rotor42mm

Prospex LX line44.8mm

Power Reserve

JM Rotor42h

Prospex LX line72h

Water Resistance

JM Rotor50m

Prospex LX line200m

MSRP

JM Rotor$299

Prospex LX line$5,500

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Super-clear coating

Lume

None

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

Miyota 8215

5R66

Type

Automatic

Spring Drive

Power Reserve

42h

72h

Jewels

Pricing

1 specs

MSRP

$299

$5,500

Follow this matchup

Get a note when Oblvlo JM Rotor vs Seiko Prospex LX line gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Oblvlomicro

DM Series

Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50

9 watches · 9 variantsUnder $50

43mm·Automatic·200m WR

$399MSRP

—Used

All alternatives to the JM Rotor →All alternatives to the Prospex LX line →

Explore the full catalog

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Oblvlo DM Skeleton DivevsSeiko Prospex LX line Seiko Prospex LX linevsSpinnaker Croft 42 Skeleton Oblvlo BLM TrisomevsSeiko Prospex LX line Oblvlo BLM IIvsSeiko Prospex LX line Oblvlo JM RotorvsSpinnaker Tesei Mille Metri GMT Oblvlo JM RotorvsSpinnaker Dumas GMT

Edit this comparison Add another watch Explore more 41–46mm watches

Oblvlo JM RotorvsSeiko Prospex LX line

At a glance

Full specifications

Follow this matchup

More watches worth a look

DM Skeleton Dive

Tesei Mille Metri GMT

Croft 42 Skeleton

BLM Trisome

Hawker Hunter Atlas GMT Automatic

Hamburg Automatik

Odyssey Original

Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50

People also compared