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

At MSRP the Seiko Prospex Sea is the cheaper of the two at $625, against $889 for the Smith & Bradley Atlantis Blackfish Auto — a $264 gap before any retailer discounting.

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

The Smith & Bradley Atlantis Blackfish Auto wears larger at 44mm versus 43.8mm for the Seiko Prospex Sea — a 0.2mm difference across the dial.

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

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

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

The Seiko Prospex Sea 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?

Both watches run automatic movements — the Smith & Bradley Atlantis Blackfish Auto uses the Sellita SW200 and the Seiko Prospex Sea uses the 4R35.

Side by side

Smith & Bradley Atlantis Blackfish AutovsSeiko Prospex Sea

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

srpe37

MSRP $625

At a glance

10 of 29 specs differ

Diameter

Atlantis Blackfish Auto44mm

Prospex Sea43.8mm

Power Reserve

Atlantis Blackfish Auto38h

Prospex Sea41h

Water Resistance

Atlantis Blackfish Auto300m

Prospex Sea200m

MSRP

Atlantis Blackfish Auto$889

Prospex Sea$625

Full specifications

Case

4 specs

Diameter

44mm

43.8mm

Thickness

12mm

12.8mm

Lug-to-Lug

46mm

48.7mm

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

4R35

Power Reserve

38h

41h

Jewels

Pricing

1 specs

MSRP

$889

$625

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