Side by side

Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited EditionvsTornek-Rayville Blakjak Time-elapse

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

Blakjak Time-elapse
Tornek-RayvilleBlakjak Time-elapse
MSRP $895

At a glance

11 of 29 specs differ
Diameter
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition42mm
Blakjak Time-elapse42.5mm
Power Reserve
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition72h
Blakjak Time-elapse42h
Water Resistance
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition300m
Blakjak Time-elapse200m
MSRP
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition$1,750
Blakjak Time-elapse$895

Full specifications

Case

5 specs
Diameter
42mm
42.5mm
Thickness
13.3mm
13.2mm
Lug-to-Lug
48.6mm
49mm
Lug Width
20mm
22mm
Water Resistance
300m
200m

Crystal & Dial

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

Movement

3 specs
Caliber
6R54
SII NH36
Power Reserve
72h
42h
Jewels
24
25

Pricing

1 specs
MSRP
$1,750
$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 Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition is widely praised for its excellent quality and finishing relative to its price point, featuring a beautiful case, bracelet, and strong Lumibrite lume. Enthusiasts and reviewers highlight the comfortable 42mm case size and the distinctive 4 o'clock crown position. The watch is powered by the in-house 6R54 automatic movement, offering a 72-hour power reserve and rated accuracy of -5/+10 seconds per day, though one source notes the GMT function is secondary. Some find the 4:30 date window divisive, and the bezel clicks are described as quieter than expected. On balance, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition highly for its refined 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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