Which is cheaper, the Spinnaker Croft Mid-Size Skeleton or the Seiko Prospex Sea The Black Series?

At MSRP the Spinnaker Croft Mid-Size Skeleton is the cheaper of the two at $425, against $765 for the Seiko Prospex Sea The Black Series — a $340 gap before any retailer discounting.

Which is bigger, the Spinnaker Croft Mid-Size Skeleton or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series wears larger at 45mm versus 40mm for the Spinnaker Croft Mid-Size Skeleton — a 5mm difference across the dial.

Which has better water resistance, the Spinnaker Croft Mid-Size Skeleton or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series is rated to 200m versus 100m for the Spinnaker Croft Mid-Size Skeleton.

Which has a longer power reserve, the Spinnaker Croft Mid-Size Skeleton or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series carries a 41-hour power reserve against 40 hours on the Spinnaker Croft Mid-Size Skeleton.

What movement does the Spinnaker Croft Mid-Size Skeleton run compared to the Seiko Prospex Sea The Black Series?

Both watches run automatic movements — the Spinnaker Croft Mid-Size Skeleton uses the SII NH38A and the Seiko Prospex Sea The Black Series uses the 4R36.

Side by side

Spinnaker Croft Mid-Size SkeletonvsSeiko Prospex Sea The Black Series

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

Spinnaker Croft Mid-Size Skeleton

croft-mid-size-skeleton-automatic-spongebob-squarepants-peek-a-boo-limited-edition-dollar-diver-sp-5152-01

MSRP $425

Seiko Prospex Sea The Black Series

srpk43

MSRP $765

At a glance

14 of 29 specs differ

Diameter

Croft Mid-Size Skeleton40mm

Prospex Sea The Black Series45mm

Power Reserve

Croft Mid-Size Skeleton40h

Prospex Sea The Black Series41h

Water Resistance

Croft Mid-Size Skeleton100m

Prospex Sea The Black Series200m

MSRP

Croft Mid-Size Skeleton$425

Prospex Sea The Black Series$765

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Dollar Diver

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

SII NH38A

4R36

Power Reserve

40h

41h

Jewels

Pricing

1 specs

MSRP

$425

$765

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Spinnaker Croft Mid-Size Skeleton

The Spinnaker Croft Mid-Size Skeleton is noted for its 40mm steel case, sapphire crystal, and 150m water resistance. One owner reports strong performance from the TMI NH70 movement at -3 seconds per day, with very nice lume. On balance, owners find the Spinnaker Croft Mid-Size Skeleton to be a pretty nice option, particularly for its movement performance and lume.

WatchUSeek·2

Seiko Prospex Sea The Black Series

The Seiko Prospex Sea The Black Series is widely praised for its impressive value and compelling design elements. Reviewers highlight the SLA073's cave-diving-inspired dial, high-quality bracelet, and the robust 8L35 movement, calling it a standout release. The SRPE33 and SRPE39 models are noted for their attractive price, manta ray decorated dials, and excellent LumiBrite lume, though bezel alignment can be inconsistent. The SNJ029 is celebrated for its dynamic, colorful aesthetic, solar charging, and comfortable strap, making it ideal for outdoor adventures. Overall, the consensus is that Seiko Prospex Sea The Black Series models offer excellent value, with specific models lauded for their unique dials, quality finishing, and practical features like solar charging.

Fratello·2

Hodinkee

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