Side by side

Mr Jones Watches A perfectly useless afternoon: mechanicalvsYema Superman Steel CMM.10

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

A perfectly useless afternoon: mechanical
Mr Jones WatchesA perfectly useless afternoon: mechanical
MSRP $750
Superman Steel CMM.10
YemaSuperman Steel CMM.10
MSRP $1,890

At a glance

10 of 29 specs differ
Diameter
A perfectly useless afternoon: mechanical40mm
Superman Steel CMM.1039mm
Power Reserve
A perfectly useless afternoon: mechanical40h
Superman Steel CMM.1040h
Water Resistance
A perfectly useless afternoon: mechanical
Superman Steel CMM.10300m
MSRP
A perfectly useless afternoon: mechanical$750
Superman Steel CMM.10$1,890

Full specifications

Case

6 specs
Category
Casual
Diver
Diameter
40mm
39mm
Thickness
11.3mm
Lug Width
19mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
40mm
Steel

Movement

1 specs
Caliber
Yema CMM.10

Pricing

1 specs
MSRP
$750
$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.

Mr Jones Watches A perfectly useless afternoon: mechanical

Mr Jones Watches A perfectly useless afternoon: mechanical is widely praised for its creative and original design, making it a fun conversation starter and a well-made watch for its price point. Owners appreciate the vibrant colors and quality packaging, with one reviewer noting the 40mm case dimensions and elegant lugs. The Swiss STP1-11 movement is reported to have acceptable accuracy. Some owners, however, find the Milanese bracelet too shiny, while the nylon strap may be small in diameter for some wearers. On balance, owners and reviewers rate Mr Jones Watches A perfectly useless afternoon: mechanical highly for its unique design and good value.

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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