Side by side

AVI-8 Spitfire Smith AutomaticvsSeiko 5 Sports SKX series

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 5 Sports SKX series

The Seiko 5 Sports SKX series is widely praised as an excellent gateway watch, offering great value with a solid build and powerful lume. Owners widely report that the NH36 movement's accuracy is a "luck of the draw," with official specs allowing up to +/-40 seconds per day, though many experience +/-5 to 10 seconds. Some owners note the lack of a screw-down crown and 100m water resistance, while others highlight its ISO 6425 compliance, 200m water resistance, and screw-down crown as superior tool watch features. Some owners find the original SKX models heavier and bulkier than newer lines, while others praise its iconic, tough, and rugged dive watch design and proven durability. On balance, owners and reviewers rate the Seiko 5 Sports SKX series highly for its iconic, durable dive watch design and strong value proposition.

At a glance

12 of 29 specs differ
Diameter
Spitfire Smith Automatic42mm
5 Sports SKX series42.5mm
Power Reserve
Spitfire Smith Automatic
5 Sports SKX series41h
Water Resistance
Spitfire Smith Automatic50m
5 Sports SKX series100m
MSRP
Spitfire Smith Automatic$490
5 Sports SKX series$495

Full specifications

Case

5 specs
Category
Pilot
GMT
Diameter
42mm
42.5mm
Thickness
13.6mm
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
4R34
Power Reserve
0h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$490
$495
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