Side by side

Tornek-Rayville Blakjak 12-hr GMTvsYema Granvelle CMM.29

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
Granvelle CMM.29
YemaGranvelle CMM.29
MSRP $1,913

At a glance

12 of 29 specs differ
Diameter
Blakjak 12-hr GMT42.5mm
Granvelle CMM.2939mm
Power Reserve
Blakjak 12-hr GMT42h
Granvelle CMM.2940h
Water Resistance
Blakjak 12-hr GMT200m
Granvelle CMM.2950m
MSRP
Blakjak 12-hr GMT$895
Granvelle CMM.29$1,913

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
42.5mm
39mm
Thickness
13.2mm
8.6mm
Lug-to-Lug
49mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
50m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Lume
Superluminova
None

Movement

2 specs
Caliber
SII NH36
Yema CMM.29
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$895
$1,913

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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 Granvelle CMM.29

Owners praise the Yema Granvelle CMM.29's gorgeous dial, noting its guilloché pattern and carved hour indices that catch the light. One owner describes the movement as a "feast for the eyes" but finds the watch frustrating at work due to its lack of a specific function. On balance, owners appreciate the Yema Granvelle CMM.29 for its visually striking dial and movement finishing, with some finding its utility limited in certain professional contexts.

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