Side by side

Tissot Gentleman Open HeartvsTornek-Rayville Blakjak 12-hr GMT

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

Gentleman Open Heart
TissotGentleman Open Heart
MSRP $1,025
Blakjak 12-hr GMT
Tornek-RayvilleBlakjak 12-hr GMT
MSRP $895

At a glance

13 of 29 specs differ
Diameter
Gentleman Open Heart40mm
Blakjak 12-hr GMT42.5mm
Power Reserve
Gentleman Open Heart80h
Blakjak 12-hr GMT42h
Water Resistance
Gentleman Open Heart100m
Blakjak 12-hr GMT200m
MSRP
Gentleman Open Heart$1,025
Blakjak 12-hr GMT$895

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
40mm
42.5mm
Thickness
11.5mm
13.2mm
Lug-to-Lug
40mm
49mm
Lug Width
21mm
22mm
Water Resistance
100m
200m

Crystal & Dial

4 specs
Crystal Shape
Domed
Flat
Dial Color
Silver
Black
Indices
Indexes
Applied
Lume
Super-LumiNova ®
Superluminova

Movement

2 specs
Caliber
11 1/2'''
SII NH36
Power Reserve
80h
42h

Pricing

1 specs
MSRP
$1,025
$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.

Tissot Gentleman Open Heart

Owners widely praise the Tissot Gentleman Open Heart for its versatile dressy-sporty aesthetic and elegant sunburst dial finish, with one owner preferring its less shiny blue dial compared to other versions. The watch offers excellent fit and bracelet adjustability, and its modified Powermatic 80 movement achieves COSC-level accuracy of -3 to +5 seconds/day, though the seconds hand movement is slightly less smooth at 6 movements per second. However, one owner reported the watch arrived non-functional, requiring a return due to an inoperable movement. On balance, owners rate the Tissot Gentleman Open Heart highly for its aesthetic appeal and accurate timekeeping, despite a reported instance of a faulty movement.

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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