Side by side

Oblvlo JM EarthvsSeiko Prospex SPEEDTIMER Mechanical Chronograph

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

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JM Earth
OblvloJM Earth
MSRP $228
Prospex SPEEDTIMER Mechanical Chronograph
SeikoProspex SPEEDTIMER Mechanical Chronograph
MSRP $2,500
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Buy used on eBay ↗
Buy from Seiko ↗
Buy used on eBay ↗

At a glance

11 of 29 specs differ
Diameter
JM Earth42mm
Prospex SPEEDTIMER Mechanical Chronograph42mm
Power Reserve
JM Earth40h
Prospex SPEEDTIMER Mechanical Chronograph45h
Water Resistance
JM Earth50m
Prospex SPEEDTIMER Mechanical Chronograph100m
MSRP
JM Earth$228
Prospex SPEEDTIMER Mechanical Chronograph$2,500

Full specifications

Case

4 specs
Category
Sport
Chronograph
Thickness
13mm
14.6mm
Lug-to-Lug
46mm
49.5mm
Water Resistance
50m
100m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
—
8R48
Power Reserve
40h
45h
Jewels
25
34

Pricing

1 specs
MSRP
$228
$2,500
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Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62vsSeiko Prospex SPEEDTIMER Mechanical ChronographIkepod Megapod x Tom Christopher Hand PaintedvsSeiko Prospex SPEEDTIMER Mechanical ChronographCIGA Design GILDED AGEvsSeiko Prospex SPEEDTIMER Mechanical ChronographLucky Harvey Rose Gold OwlvsSeiko Prospex SPEEDTIMER Mechanical ChronographOblvlo JM EarthvsYema Navygraf ChronoOblvlo JM EarthvsYema Flygraf Navigator
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