Side by side

Grand Seiko SLGA015vsTornek-Rayville Blakjak Time-elapse

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

SLGA015
Grand SeikoSLGA015
MSRP $12,600
Blakjak Time-elapse
Tornek-RayvilleBlakjak Time-elapse
MSRP $895

At a glance

10 of 29 specs differ
Diameter
SLGA01543.8mm
Blakjak Time-elapse42.5mm
Power Reserve
SLGA015120h
Blakjak Time-elapse42h
Water Resistance
SLGA015200m
Blakjak Time-elapse200m
MSRP
SLGA015$12,600
Blakjak Time-elapse$895

Full specifications

Case

5 specs
Diameter
43.8mm
42.5mm
Thickness
13.8mm
13.2mm
Lug-to-Lug
51.5mm
49mm
Lug Width
23mm
22mm
Material
Titanium
Stainless Steel

Crystal & Dial

1 specs
Lume
None
Superluminova

Movement

3 specs
Caliber
9RA5
SII NH36
Type
Spring Drive
Automatic
Power Reserve
120h
42h

Pricing

1 specs
MSRP
$12,600
$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.

Grand Seiko SLGA015

The Grand Seiko SLGA015 is widely praised for its exceptional accuracy, with owners reporting performance far exceeding the stated 10 seconds per month. The Spring Drive movement's smooth sweep and 5-day power reserve are also noted strengths, as is the lighter titanium case construction. However, some owners find the bracelet extension non-intuitive, and one noted the clasp scratched easily. The watch features a nature-inspired, wave-like dial texture. Overall, owners rate the Grand Seiko SLGA015 highly for its impressive accuracy and quality construction.

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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