Side by side

AVI-8 Spitfire Smith AutomaticvsSeiko King Turtle

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 King Turtle

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many appreciating its faithful recreation of classic designs and proven movements like the 4R36 and 6R15. Reviewers highlight impressive case finishing and durability, noting that even larger models wear smaller than expected due to thoughtful case design. Some owners find the solar quartz models a great entry point, appreciating their design and solar functionality. However, specific variants receive critiques: the bracelet clasp on the Samurai is described as underwhelming, and the Sumo's bracelet width and clasp are seen as too narrow and rudimentary, respectively. The SPB183 is considered expensive for a Japanese watch, and its lume is noted as not quite matching older Seiko Monster models. The GMT function on the SPB519 is deemed less practical for serious travel, and its bezel clicks are described as quieter and mushier.

At a glance

13 of 29 specs differ
Diameter
Spitfire Smith Automatic42mm
King Turtle45mm
Power Reserve
Spitfire Smith Automatic
King Turtle41h
Water Resistance
Spitfire Smith Automatic50m
King Turtle200m
MSRP
Spitfire Smith Automatic$490
King Turtle$650

Full specifications

Case

5 specs
Category
Pilot
Diver
Diameter
42mm
45mm
Thickness
13.2mm
Lug-to-Lug
47.7mm
Water Resistance
50m
200m

Crystal & Dial

4 specs
Crystal
Mineral
Sapphire
AR Coating
Anti-reflective coating on inner surface
Dial Color
WOOLSTON
Lume
None
LumiBrite on hands and index(es)

Movement

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

Pricing

1 specs
MSRP
$490
$650
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when AVI-8 Spitfire Smith Automatic vs Seiko King Turtle gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.