Which is cheaper, the Smith & Bradley Atlantis Blackfish Auto or the Seiko Prospex Sea The Black Series?

At MSRP the Seiko Prospex Sea The Black Series is the cheaper of the two at $765, against $889 for the Smith & Bradley Atlantis Blackfish Auto — a $124 gap before any retailer discounting.

Which is bigger, the Smith & Bradley Atlantis Blackfish Auto or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series wears larger at 45mm versus 44mm for the Smith & Bradley Atlantis Blackfish Auto — a 1mm difference across the dial.

Which has better water resistance, the Smith & Bradley Atlantis Blackfish Auto or the Seiko Prospex Sea The Black Series?

The Smith & Bradley Atlantis Blackfish Auto is rated to 300m versus 200m for the Seiko Prospex Sea The Black Series.

Which has a longer power reserve, the Smith & Bradley Atlantis Blackfish Auto or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series carries a 41-hour power reserve against 38 hours on the Smith & Bradley Atlantis Blackfish Auto.

What movement does the Smith & Bradley Atlantis Blackfish Auto run compared to the Seiko Prospex Sea The Black Series?

Both watches run automatic movements — the Smith & Bradley Atlantis Blackfish Auto uses the Sellita SW200 and the Seiko Prospex Sea The Black Series uses the 4R36.

Side by side

Smith & Bradley Atlantis Blackfish AutovsSeiko Prospex Sea The Black Series

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

Smith & Bradley Atlantis Blackfish Auto

atlantis-blackfish-automatic-dive-watch

MSRP $889

Seiko Prospex Sea The Black Series

srpk43

MSRP $765

At a glance

10 of 29 specs differ

Diameter

Atlantis Blackfish Auto44mm

Prospex Sea The Black Series45mm

Power Reserve

Atlantis Blackfish Auto38h

Prospex Sea The Black Series41h

Water Resistance

Atlantis Blackfish Auto300m

Prospex Sea The Black Series200m

MSRP

Atlantis Blackfish Auto$889

Prospex Sea The Black Series$765

Full specifications

Case

4 specs

Diameter

44mm

45mm

Thickness

12mm

13.2mm

Lug-to-Lug

46mm

47.7mm

Water Resistance

300m

200m

Crystal & Dial

2 specs

AR Coating

Yes

Anti-reflective coating on inner surface

Lume

Superluminova

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Sellita SW200

4R36

Power Reserve

38h

41h

Jewels

Pricing

1 specs

MSRP

$889

$765

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