Side by side

Sternglas Naos Edition SportvsYema Superman Titanium Tourbillon CMM.31 Limited Edition

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

Naos Edition Sport
SternglasNaos Edition Sport
MSRP $269
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
Naos Edition Sport38mm
Superman Titanium Tourbillon CMM.31 Limited Edition43mm
Power Reserve
Naos Edition Sport
Superman Titanium Tourbillon CMM.31 Limited Edition40h
Water Resistance
Naos Edition Sport50m
Superman Titanium Tourbillon CMM.31 Limited Edition300m
MSRP
Naos Edition Sport$269
Superman Titanium Tourbillon CMM.31 Limited Edition$13,000

Full specifications

Case

7 specs
Category
Sport
Diver
Diameter
38mm
43mm
Thickness
8mm
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 715
Yema CMM.31 Tourbillon
Type
Quartz
Automatic
Power Reserve
40h
Jewels
25

Pricing

1 specs
MSRP
$269
$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 Edition Sport

Owners widely praise the Sternglas Naos Edition Sport for its durability and refined daily wearability, easily transitioning between casual and dressier occasions. The sapphire crystal remains scratchless, and the steel case holds up well, though some users report minor bezel micro-scratching. One owner found the original tan strap showed significant wear and fraying within a year, necessitating a replacement. Opinions are split on the watch's aesthetic; some describe it as underwhelming with a printed-on face, small font, and toy-like hands, feeling cheap and looking worse in person, while others love the watch and find it looks fantastic. Some owners in the line also note that certain variants wear smaller than expected, with a desire for smaller case sizes for slender wrists. On balance, owners rate the Sternglas Naos Edition Sport highly for its durable construction and versatile design, despite some reservations about its dial finishing and strap quality.

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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