Side by side

Sternglas NaosvsYema Superman Titanium Tourbillon CMM.31 Limited Edition

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

Naos
SternglasNaos
MSRP $323
Superman Titanium Tourbillon CMM.31 Limited Edition
YemaSuperman Titanium Tourbillon CMM.31 Limited Edition
MSRP $13,000

At a glance

14 of 29 specs differ
Diameter
Naos38mm
Superman Titanium Tourbillon CMM.31 Limited Edition43mm
Power Reserve
Naos
Superman Titanium Tourbillon CMM.31 Limited Edition40h
Water Resistance
Naos50m
Superman Titanium Tourbillon CMM.31 Limited Edition300m
MSRP
Naos$323
Superman Titanium Tourbillon CMM.31 Limited Edition$13,000

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
38mm
43mm
Thickness
7.2mm
11.7mm
Lug-to-Lug
41mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
50m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Titanium

Movement

4 specs
Caliber
Ronda 714
Yema CMM.31 Tourbillon
Type
Quartz
Automatic
Power Reserve
40h
Jewels
25

Pricing

1 specs
MSRP
$323
$13,000

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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.

Sternglas Naos

The Sternglas Naos is widely praised for its refined daily wearability and Bauhaus design, with owners noting its durable construction, scratchless sapphire crystal, and flawless date mechanism. Reviewers highlight the comfortable and supple bracelet that drapes well and a date window that matches the dial. One owner advises replacing the original tan strap due to a lack of durability. The quartz movement is noted for its accuracy, and the absence of a seconds hand is seen as a unique solution to prevent misaligned markers. Overall, owners and reviewers rate the Sternglas Naos highly for its harmonious design and comfortable wear at its price point.

Yema Superman Titanium Tourbillon CMM.31 Limited Edition

The Yema Superman Titanium Tourbillon CMM.31 Limited Edition is noted for its in-house titanium tourbillon movement offering a 105-hour power reserve and 200m water resistance, alongside a unique asphalt-grained dial. Owners find the 43mm size wearable, with one describing it as a contradictory "toolwatch" with exceptional movement craftsmanship. A reviewer flags the bracelet clasp's extension system as crude. On balance, owners and reviewers highlight the impressive movement and dial as key strengths of the Yema Superman Titanium Tourbillon CMM.31 Limited Edition.

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