Side by side

Seiko Prospex SeavsSpinnaker Croft 39 GMT

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

Prospex Sea
SeikoProspex Sea
Croft 39 GMT
SpinnakerCroft 39 GMT
MSRP $445

At a glance

13 of 29 specs differ
Diameter
Prospex Sea42mm
Croft 39 GMT39mm
Power Reserve
Prospex Sea72h
Croft 39 GMT40h
Water Resistance
Prospex Sea300m
Croft 39 GMT100m
MSRP
Prospex Sea
Croft 39 GMT$445

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
42mm
39mm
Thickness
13.3mm
13mm
Lug-to-Lug
48.6mm
47mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Red
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
6R54
Seiko NH34A
Power Reserve
72h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$445

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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.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent value, solid build, and comfortable wearability, with specific mentions of its matte black dial, excellent lume, and cushion case that wears smaller than its dimensions suggest. The 4R36 movement is noted for hacking and hand-winding capabilities, and the bezel action is described as smooth and precise. Some owners find the watch to be a legitimate tool with a fair price, while others describe it as big, thick, and heavy, uncomfortable for smaller wrists, though this is subjective as one owner found the size perfect. The solar quartz movement is also highlighted as a collection-worthy feature. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional value and comfortable, classic design.

Spinnaker Croft 39 GMT

Owners praise the Spinnaker Croft 39 GMT for its colorful design, NH34 GMT movement, and reasonable price, noting high-standard manufacturing on the case, bezel, and bracelet. One owner finds the 43mm case and 51mm lug-to-lug dimensions too large for the design, preferring a 39-40mm case size. A potential issue with the lume was noted by one user. On balance, owners value the Spinnaker Croft 39 GMT for its attractive design and build quality at its price point, though sizing is a point of contention for some.

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