Side by side

Spinnaker Croft Mid-Size SkeletonvsSeiko 5KX

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

Croft Mid-Size Skeleton
SpinnakerCroft Mid-Size Skeleton
MSRP $425
5KX
Seiko5KX
MSRP $350
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.

Seiko 5KX

Owners widely praise the Seiko 5 Sports SKX series for its strong lume and comfortable wearability, with many noting its compact feel due to a short lug-to-lug length. The NH36 movement's accuracy varies, with typical performance between +/-5 to 10 seconds per day, though some report better. A lack of screw-down crown and ISO certification are noted drawbacks for its water resistance. Some owners find the bracelet to be of cheaper construction with hollow links, and a few have reported quality control issues. The consensus is that the Seiko 5 Sports SKX series offers good value for its price, appealing to those who appreciate its tool-like nature and iconic lineage.

At a glance

13 of 29 specs differ
Diameter
Croft Mid-Size Skeleton40mm
5KX42.5mm
Power Reserve
Croft Mid-Size Skeleton40h
5KX41h
Water Resistance
Croft Mid-Size Skeleton100m
5KX100m
MSRP
Croft Mid-Size Skeleton$425
5KX$350

Full specifications

Case

6 specs
Category
Field
Diver
Diameter
40mm
42.5mm
Thickness
14mm
13.4mm
Lug-to-Lug
47mm
46mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Dollar Diver
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
SII NH38A
4R36
Power Reserve
40h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$425
$350
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