Ianos AvyssosvsSeiko King Turtle

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Ianos Avyssos at true scale

Avyssos

Seiko King Turtle at true scale

King Turtle

Diameter

44mm

45mm

Lug-to-Lug

54mm

47.7mm

lowest

Thickness

n/a

13.2mm

Water Resistance

300m

highest

200m

Power Reserve

42h

highest

41h

MSRP

$1,257

$650

lowest

Movement

Sellita SW216-1

Seiko 4R36

Case

5 specs
Diameter
44mm
45mm
Thickness
n/a
13.2mm
Lug-to-Lug
54mm
47.7mm
Lug Width
n/a
22mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
Bronze
n/a
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Sellita SW216-1
Seiko 4R36
Type
Manual
Automatic
Power Reserve
42h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$1,257
$650
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Reviews

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

Ianos Avyssos

The Ianos Avyssos is recognized for its historically inspired design, featuring a sandwich dial with lume visible through cut-out markers and a small seconds disc referencing the Antikythera mechanism, alongside hour markers shaped like Greek sponge diver ballast stones. Reviewers note its 44mm angular case with a PVD finish and a blue-to-black dégradé dial. One reviewer flags a disconcerting ratcheting click when tightening the crown. An owner mentions the strap's durability for diving but notes a NATO is included. On balance, owners and reviewers appreciate the Ianos Avyssos for its unique historical design and solid construction at its price point.

Seiko King Turtle

Seiko King Turtle is widely praised for its excellent value and robust design, featuring the reliable 4R36 movement. Owners appreciate its superior lume and a bezel action described as smoother and more precise than some siblings. The 45mm cushion case, while substantial, wears smaller than expected due to its shape and short lug-to-lug distance. On balance, owners and reviewers rate the Seiko King Turtle highly for its proven design and overall value proposition.

From video reviewers

The King Turtle's ceramic bezel and sapphire crystal are significant upgrades. Reviewers noted a slight price increase for these features.