Side by side

Seiko King TurtlevsHelgray Superfast Automatic - Silver Panda

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

The bottom line

The 40mm Superfast Automatic - Silver Panda wears 5mm narrower than the 45mm King Turtle — that's a meaningful jump on most wrists.

What people say

Owners + reviewers, side by side

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

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.

Helgray Superfast Automatic - Silver Panda

The Helgray Superfast Automatic - Silver Panda is praised for its attractive, timeless panda aesthetic and value, featuring a reliable Seiko VK64 mecaquartz movement and sapphire crystal. However, its wearability is described as bulky and boxy, the lume is disappointing, lasting only 5-10 minutes, and the chronograph pusher action is slightly stiff. On balance, owners appreciate the Helgray Superfast Automatic - Silver Panda for its appealing panda dial and value proposition.

Where to get them

Check prices & track

Seiko King Turtle
Seiko King Turtle
MSRP $650
Helgray Superfast Automatic - Silver Panda
Helgray Superfast Automatic - Silver Panda
MSRP $799
King Turtle
SeikoKing Turtle
MSRP $650
Superfast Automatic - Silver Panda
HelgraySuperfast Automatic - Silver Panda
MSRP $799

At a glance

12 of 29 specs differ
Diameter
King Turtle45mm
Superfast Automatic - Silver Panda40mm
Power Reserve
King Turtle41h
Superfast Automatic - Silver Panda40h
Water Resistance
King Turtle200m
Superfast Automatic - Silver Panda100m
MSRP
King Turtle$650
Superfast Automatic - Silver Panda$799

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
45mm
40mm
Thickness
13.2mm
12mm
Lug-to-Lug
47.7mm
46mm
Lug Width
22mm
20mm
Water Resistance
200m
100m

Crystal & Dial

2 specs
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands and index(es)
None

Movement

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

Pricing

1 specs
MSRP
$650
$799

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