Side by side

Seiko King TurtlevsTornek-Rayville Blakjak Time-elapse

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

King Turtle
SeikoKing Turtle
MSRP $650
Blakjak Time-elapse
Tornek-RayvilleBlakjak Time-elapse
MSRP $895

At a glance

8 of 29 specs differ
Diameter
King Turtle45mm
Blakjak Time-elapse42.5mm
Power Reserve
King Turtle41h
Blakjak Time-elapse42h
Water Resistance
King Turtle200m
Blakjak Time-elapse200m
MSRP
King Turtle$650
Blakjak Time-elapse$895

Full specifications

Case

2 specs
Diameter
45mm
42.5mm
Lug-to-Lug
47.7mm
49mm

Crystal & Dial

2 specs
AR Coating
Anti-reflective coating on inner surface
Yes
Lume
LumiBrite on hands and index(es)
Superluminova

Movement

3 specs
Caliber
4R36
SII NH36
Power Reserve
41h
42h
Jewels
24
25

Pricing

1 specs
MSRP
$650
$895

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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.

Tornek-Rayville Blakjak Time-elapse

The Tornek-Rayville Blakjak Time-elapse is a rugged, dive-capable field watch, an evolution of a 1990s military concept. It features a 42.5mm stainless steel case, a sapphire crystal, and a Seiko NH36 automatic movement with a 40-hour power reserve. The dial is busy but functional, and the watch features Super-LumiNova BGW9. On balance, reviewers note the Tornek-Rayville Blakjak Time-elapse is a modernized military watch with robust dive capabilities.

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