Side by side

Tornek-Rayville Blakjak 12-hr GMTvsYema Navygraf CMM.10

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

Blakjak 12-hr GMT
Tornek-RayvilleBlakjak 12-hr GMT
MSRP $895
Navygraf CMM.10
YemaNavygraf CMM.10
MSRP $1,899

At a glance

13 of 29 specs differ
Diameter
Blakjak 12-hr GMT42.5mm
Navygraf CMM.1039mm
Power Reserve
Blakjak 12-hr GMT42h
Navygraf CMM.1040h
Water Resistance
Blakjak 12-hr GMT200m
Navygraf CMM.10100m
MSRP
Blakjak 12-hr GMT$895
Navygraf CMM.10$1,899

Full specifications

Case

6 specs
Diameter
42.5mm
39mm
Thickness
13.2mm
11mm
Lug-to-Lug
49mm
46mm
Lug Width
22mm
19mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Black
Standard
Lume
Superluminova
None

Movement

2 specs
Caliber
SII NH36
Yema CMM.10
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$895
$1,899

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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.

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.

Yema Navygraf CMM.10

Owners widely report quality control concerns and suspect craftsmanship with the Yema Navygraf, with one user noting crooked text. A reviewer praised the Slim CMM.20 Limited Edition for its stylish, slim profile and classy finishing on a black lacquered enamel dial, though the audible micro-rotor spinning at its price point was a surprise. On balance, the consensus is that while the Yema Navygraf offers a stylish design, potential buyers should be aware of reported quality control issues.

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