Side by side

Seiko 5 Sports SKX seriesvsTornek-Rayville Blakjak Time-elapse

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

5 Sports SKX series
Seiko5 Sports SKX series
MSRP $495
Blakjak Time-elapse
Tornek-RayvilleBlakjak Time-elapse
MSRP $895

At a glance

11 of 29 specs differ
Diameter
5 Sports SKX series42.5mm
Blakjak Time-elapse42.5mm
Power Reserve
5 Sports SKX series41h
Blakjak Time-elapse42h
Water Resistance
5 Sports SKX series100m
Blakjak Time-elapse200m
MSRP
5 Sports SKX series$495
Blakjak Time-elapse$895

Full specifications

Case

4 specs
Category
GMT
Diver
Thickness
13.6mm
13.2mm
Lug-to-Lug
46mm
49mm
Water Resistance
100m
200m

Crystal & Dial

3 specs
Crystal
Hardlex
Sapphire
AR Coating
Inner
Yes
Lume
LumiBrite on hands and index(es)
Superluminova

Movement

3 specs
Caliber
4R34
SII NH36
Power Reserve
41h
42h
Jewels
24
25

Pricing

1 specs
MSRP
$495
$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 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.

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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