Side by side

AVI-8 Spitfire Smith AutomaticvsSeiko 5KX

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

What people say

Owners + reviewers, side by side

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

AVI-8 Spitfire Smith Automatic

Owners praise the AVI-8 Spitfire Smith Automatic for its dial depth created by elevated numerals, a deeply signed buckle, and detailed case sides. The watch is also noted for being practically mark-free with no dings found, and comes with a barely worn brown leather AVI-8 OEM strap. On balance, owners rate the AVI-8 Spitfire Smith Automatic highly for its detailed finishing and pristine condition.

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

12 of 29 specs differ
Diameter
Spitfire Smith Automatic42mm
5KX42.5mm
Power Reserve
Spitfire Smith Automatic
5KX41h
Water Resistance
Spitfire Smith Automatic50m
5KX100m
MSRP
Spitfire Smith Automatic$490
5KX$350

Full specifications

Case

5 specs
Category
Pilot
Diver
Diameter
42mm
42.5mm
Thickness
13.4mm
Lug-to-Lug
46mm
Water Resistance
50m
100m

Crystal & Dial

3 specs
Crystal
Mineral
Hardlex
Dial Color
WOOLSTON
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
4R36
Power Reserve
0h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$490
$350
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