Side by side

Tornek-Rayville TR-660 Acrylic Non-datevsYema Navygraf Pearl CMM.20

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

TR-660 Acrylic Non-date
Tornek-RayvilleTR-660 Acrylic Non-date
Navygraf Pearl CMM.20
YemaNavygraf Pearl CMM.20
MSRP $1,862
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 Acrylic Non-date

The Tornek-Rayville TR-660 Acrylic Non-date is a 40mm bead-blasted stainless steel watch with a utilitarian matte black dial and a moisture detector, measuring 14.7mm thick and 48.5mm lug-to-lug, featuring a subtly domed, AR-coated crystal. One owner notes a preference for a different watch's bezel-locking mechanism but appreciates the TR-660's 20mm lug size. Another owner reports damage to the case and bezel, though it includes unused and worn straps. On balance, owners find the Tornek-Rayville TR-660 Acrylic Non-date to have a timeless design that remains appealing.

Yema Navygraf Pearl CMM.20

The Yema Navygraf Pearl CMM.20 is praised for its elegant and slim case design, measuring between 9.5mm and 9.75mm thick, and its unique mother-of-pearl dial and bezel. The watch features functional dive watch elements like 200-meter water resistance and is powered by the in-house CMM.20 micro-rotor movement, which offers a 70-hour power reserve and is adjusted to -3/+7 seconds a day. Overall, reviewers highlight the Yema Navygraf Pearl CMM.20's sophisticated aesthetic and slim profile as its primary strengths.

At a glance

13 of 29 specs differ
Diameter
TR-660 Acrylic Non-date40mm
Navygraf Pearl CMM.2039mm
Power Reserve
TR-660 Acrylic Non-date50h
Navygraf Pearl CMM.2040h
Water Resistance
TR-660 Acrylic Non-date200m
Navygraf Pearl CMM.20100m
MSRP
TR-660 Acrylic Non-date
Navygraf Pearl CMM.20$1,862

Full specifications

Case

6 specs
Diameter
40mm
39mm
Thickness
14.7mm
9.75mm
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
Pearl
Lume
Superluminova
None

Movement

2 specs
Caliber
TMI NH38
Yema CMM.20
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$1,862
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