Side by side

Seiko 62MASvsTornek-Rayville Blakjak 12-hr GMT

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

62MAS
Seiko62MAS
MSRP $1,200
Blakjak 12-hr GMT
Tornek-RayvilleBlakjak 12-hr GMT
MSRP $895

At a glance

10 of 29 specs differ
Diameter
62MAS40.5mm
Blakjak 12-hr GMT42.5mm
Power Reserve
62MAS70h
Blakjak 12-hr GMT42h
Water Resistance
62MAS200m
Blakjak 12-hr GMT200m
MSRP
62MAS$1,200
Blakjak 12-hr GMT$895

Full specifications

Case

3 specs
Diameter
40.5mm
42.5mm
Lug-to-Lug
47.6mm
49mm
Lug Width
20mm
22mm

Crystal & Dial

3 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Yes
Lume
LumiBrite on hands, index(es) and bezel
Superluminova

Movement

3 specs
Caliber
6R35
SII NH36
Power Reserve
70h
42h
Jewels
24
25

Pricing

1 specs
MSRP
$1,200
$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 62MAS

The Seiko Prospex Sea 1965 Heritage Diver's Watch is praised for its vintage-inspired finishing, crisp bezel action, and build quality. Owners widely report the movement averages within +/- 10 seconds per day, though some note accuracy issues. The 40mm case size is considered by some to wear larger than expected, and the price point is a subject of debate, with some finding it too high and others fair. The watch features a 72-hour power reserve from the Caliber 6R55 movement, a 300-meter depth rating, and a box-shaped sapphire crystal. On balance, owners and reviewers appreciate the Seiko Prospex Sea 1965 Heritage Diver's Watch for its refined design and solid build quality, despite some reservations about its price and perceived size.

Tornek-Rayville Blakjak 12-hr GMT

The Tornek-Rayville Blakjak 12-hr GMT is a 42.5mm stainless steel watch featuring a DLC-coated bezel, sapphire crystal, and a matte black dial with 12- and 24-hour scales. It is powered by a Seiko SII NH36 automatic movement, offering a 41-hour power reserve, and boasts 200 meters of water resistance. The dial includes a day/date complication and Super-LumiNova BGW9 lume. Overall, owners and reviewers highlight its robust build and functional military-inspired design as key strengths.

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