Side by side

Tornek-Rayville TR-660 Sapphire Non-datevsYema Navygraf CMM.10

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

TR-660 Sapphire Non-date
Tornek-RayvilleTR-660 Sapphire Non-date
Navygraf CMM.10
YemaNavygraf CMM.10
MSRP $1,899

At a glance

13 of 29 specs differ
Diameter
TR-660 Sapphire Non-date40mm
Navygraf CMM.1039mm
Power Reserve
TR-660 Sapphire Non-date50h
Navygraf CMM.1040h
Water Resistance
TR-660 Sapphire Non-date200m
Navygraf CMM.10100m
MSRP
TR-660 Sapphire Non-date
Navygraf CMM.10$1,899

Full specifications

Case

6 specs
Diameter
40mm
39mm
Thickness
14.7mm
11mm
Lug-to-Lug
48.5mm
46mm
Lug Width
20mm
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
TMI NH38
Yema CMM.10
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$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 TR-660 Sapphire Non-date

Owners widely praise the Tornek-Rayville TR-660 for its quality, good timekeeping, and suitability as a military diver reissue. The 40mm bead-blasted 316L stainless steel case, sapphire bezel inlay, and Arclite Super LumiNova are noted features, powered by a Japanese TMI NH38 automatic movement and water-resistant to 20 ATMs. Some owners suggest alternatives due to availability issues with the small-batch releases. Overall, owners rate the Tornek-Rayville TR-660 highly for its faithful reissue design and quality build at its price point.

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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