Side by side

Longines LA GRANDE CLASSIQUE DE LONGINESvsYema Superman Slim CMM.20

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

LA GRANDE CLASSIQUE DE LONGINES
LonginesLA GRANDE CLASSIQUE DE LONGINES
MSRP $2,300
Superman Slim CMM.20
YemaSuperman Slim CMM.20
MSRP $2,372

At a glance

23 of 29 specs differ
Diameter
LA GRANDE CLASSIQUE DE LONGINES29mm
Superman Slim CMM.2039mm
Power Reserve
LA GRANDE CLASSIQUE DE LONGINES40h
Superman Slim CMM.2040h
Water Resistance
LA GRANDE CLASSIQUE DE LONGINES30m
Superman Slim CMM.20300m
MSRP
LA GRANDE CLASSIQUE DE LONGINES$2,300
Superman Slim CMM.20$2,372

Full specifications

Case

9 specs
Category
Dress
Diver
Diameter
29mm
39mm
Thickness
4.5mm
9.95mm
Lug-to-Lug
33.2mm
Lug Width
16mm
20mm
Material
Red PVD coating
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
30m
300m
Caseback
Solid

Crystal & Dial

6 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Red
Black
Indices
Diamond indexes
Applied
Lume
Super-LumiNova
None

Movement

7 specs
Caliber
L420.2
Yema CMM.20
Type
Quartz
Automatic
Beat Rate
25,200 vph
28,800 vph
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Hours and minutes
None

Pricing

1 specs
MSRP
$2,300
$2,372

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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.

Longines LA GRANDE CLASSIQUE DE LONGINES

Owners widely praise the La Grande Classique de Longines for its extreme thinness, elegance, and timeless simplicity, with many finding it comfortable and lightweight due to its slim, flat design. The quartz version is recommended for its accuracy and convenience, while both quartz and automatic models are noted for their slim profiles and elegant aesthetics, with the bracelet being comfortable. Some owners are split on the styling, with Roman numerals appealing to some but not all, and one owner finds the Tonneau collection model a lovely dress watch despite preferring round faces. Owners suggest pre-owned options for better value, with prices ranging from $300-$1000 USD depending on the model and condition. One owner reports frequent battery replacements on the quartz model, with batteries lasting only months. Overall, owners rate the La Grande Classique de Longines highly for its slim, elegant design and value, particularly on the pre-owned market.

Yema Superman Slim CMM.20

Owners and reviewers praise the Yema Superman Slim CMM.20 for its appealing retro design, balanced 39mm case, and in-house CMM.20 micro-rotor movement, with some finding the fish scale bracelet attractive. Concerns exist regarding its $2500/€2,490 MSRP, with some owners questioning its value and noting the potential for QC issues or a "jittery" seconds hand attributed to the new movement. The bracelet's articulation and stamped clasp draw criticism, though some owners report it improves with wear. Overall, owners and reviewers appreciate the Yema Superman Slim CMM.20's vintage styling and unique micro-rotor movement, but its value proposition and some finishing details are points of contention.

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