Side by side

Tornek-Rayville TR-660 Acrylic Non-datevsYema Superman Steel CMM.10

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
Superman Steel CMM.10
YemaSuperman Steel CMM.10
MSRP $1,890

At a glance

13 of 29 specs differ
Diameter
TR-660 Acrylic Non-date40mm
Superman Steel CMM.1039mm
Power Reserve
TR-660 Acrylic Non-date50h
Superman Steel CMM.1040h
Water Resistance
TR-660 Acrylic Non-date200m
Superman Steel CMM.10300m
MSRP
TR-660 Acrylic Non-date
Superman Steel CMM.10$1,890

Full specifications

Case

6 specs
Diameter
40mm
39mm
Thickness
14.7mm
11.3mm
Lug-to-Lug
48.5mm
Lug Width
20mm
19mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

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

Movement

2 specs
Caliber
TMI NH38
Yema CMM.10
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$1,890

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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 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 Superman Steel CMM.10

Owners widely praise the Yema Superman Steel CMM.10 for its refined casework, including polished lug bevels and an elegant crown guard, and its comfortable 39mm x 10.5mm dimensions. The glossy black lacquer dial and bezel insert are noted for adding depth, and the in-house CMM.10 movement is reported to be accurate, with one owner observing a loss of only 2 seconds over 2 days. The scales bracelet is described as gorgeous and nearly invisible on the wrist, though some find its polished center links too flashy. One reviewer flagged the signature bezel lock mechanism as flimsy and inconvenient. The CMM.10 automatic movement offers a 70-hour power reserve and is regulated to within +5/-3 seconds per day. On balance, owners and reviewers rate the Yema Superman Steel CMM.10 highly for its refined finishing and comfortable wearability at its price point.

From video reviewers

The Yema Steel features an in-house movement with a micro-rotor, one of the most beautiful at this price point. The watch's clasp feels a bit thin, which is a notable drawback. Reviewers disagree on the movement's power reserve, with one reviewer noting a 42-hour reserve and the other not mentioning power reserve at all.

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