Side by side

Longines MASTER COLLECTION MOONPHASEvsYema Superman Slim CMM.20

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

MASTER COLLECTION MOONPHASE
LonginesMASTER COLLECTION MOONPHASE
MSRP $3,450
Superman Slim CMM.20
YemaSuperman Slim CMM.20
MSRP $2,372

At a glance

23 of 29 specs differ
Diameter
MASTER COLLECTION MOONPHASE40mm
Superman Slim CMM.2039mm
Power Reserve
MASTER COLLECTION MOONPHASE72h
Superman Slim CMM.2040h
Water Resistance
MASTER COLLECTION MOONPHASE30m
Superman Slim CMM.20300m
MSRP
MASTER COLLECTION MOONPHASE$3,450
Superman Slim CMM.20$2,372

Full specifications

Case

9 specs
Category
Moonphase
Diver
Diameter
40mm
39mm
Thickness
11.1mm
9.95mm
Lug-to-Lug
47mm
Lug Width
21mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
30m
300m
Caseback
Transparent case back with sapphire crystal
Solid

Crystal & Dial

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

Movement

7 specs
Caliber
L899.5
Yema CMM.20
Beat Rate
25,200 vph
28,800 vph
Power Reserve
72h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Hours, minutes, seconds, moon phase display and date indicated by small hand at
None

Pricing

1 specs
MSRP
$3,450
$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 MASTER COLLECTION MOONPHASE

Owners widely praise the Longines MASTER COLLECTION MOONPHASE for its legible dial, romantic moonphase complication, and overall value for money. Reviewers note its classic design, barleycorn guilloché dial, and Roman numerals. Some owners find the strap superb, while others mention the cut-off Roman numeral six as a potential drawback. The watch has a 3 bar water resistance, limiting its use to drier environments, and the complete calendar requires manual adjustment for shorter months. On balance, the consensus is that the Longines MASTER COLLECTION MOONPHASE is highly regarded for its attractive dial and complication at its price point.

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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