Which is cheaper, the Oblvlo NM Automatic or the Seiko Prospex Sea The Black Series?

At MSRP the Oblvlo NM Automatic is the cheaper of the two at $210, against $765 for the Seiko Prospex Sea The Black Series — a $555 gap before any retailer discounting.

Which is bigger, the Oblvlo NM Automatic or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series wears larger at 45mm versus 40mm for the Oblvlo NM Automatic — a 5mm difference across the dial.

Which has better water resistance, the Oblvlo NM Automatic or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series is rated to 200m versus 50m for the Oblvlo NM Automatic.

Which has a longer power reserve, the Oblvlo NM Automatic or the Seiko Prospex Sea The Black Series?

The Oblvlo NM Automatic carries a 50-hour power reserve against 41 hours on the Seiko Prospex Sea The Black Series.

What movement does the Oblvlo NM Automatic run compared to the Seiko Prospex Sea The Black Series?

Both watches run automatic movements — the Oblvlo NM Automatic uses the Seiko NH39 and the Seiko Prospex Sea The Black Series uses the 4R36.

Side by side

Oblvlo NM AutomaticvsSeiko Prospex Sea The Black Series

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

Add a watch

Oblvlo NM Automatic

MSRP $210

Seiko Prospex Sea The Black Series

srpk43

MSRP $765

At a glance

11 of 29 specs differ

Diameter

NM Automatic40mm

Prospex Sea The Black Series45mm

Power Reserve

NM Automatic50h

Prospex Sea The Black Series41h

Water Resistance

NM Automatic50m

Prospex Sea The Black Series200m

MSRP

NM Automatic$210

Prospex Sea The Black Series$765

Full specifications

Case

5 specs

Crystal & Dial

2 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

Super-LumiNova

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Seiko NH39

4R36

Power Reserve

50h

41h

Jewels

Pricing

1 specs

MSRP

$210

$765

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

JM Series

Follow this matchup

Get a note when Oblvlo NM Automatic vs Seiko Prospex Sea The Black Series gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

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

Oblvlo JM TourbillonvsSeiko Prospex Sea The Black Series CIGA Design EDGEvsSeiko Prospex Sea The Black Series CIGA Design SKELETONvsSeiko Prospex Sea The Black Series Oblvlo BM SkeletonvsSeiko Prospex Sea The Black Series Oblvlo NM AutomaticvsSpinnaker Wreck Automatic Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsOblvlo NM Automatic

Edit this comparison Add another watch Explore more 39–46mm watches

Oblvlo NM AutomaticvsSeiko Prospex Sea The Black Series

At a glance

Full specifications

More watches worth a look

JM Tourbillon

Wreck Automatic

EDGE

OSAR-D (Original SAR with Date) Automatic 46mm

SKELETON

Odyssey Regatta

BM Skeleton

Dumas Automatic

Follow this matchup

People also compared