Longines MASTER COLLECTION CHRONOGRAPHvsYema Superman Slim CMM.20

Owners widely praise the Longines MASTER COLLECTION CHRONOGRAPH for its classic styling and excellent fit and finish. The dial is described as mesmerizing and legible, balancing class and complexity, contributing to comfortable wearability. One owner finds the column wheel chronograph and moon phase complication a good value around $2k, though notes the case finishing can appear homogenous and the chronograph hour counter sometimes does not reset perfectly. A specific variant's 3 bar water resistance is noted as a limitation, restricting it to less demanding environments. One owner identified the movement as a Valjoux 7751. Overall, owners rate the Longines MASTER COLLECTION CHRONOGRAPH highly for its attractive dial and value proposition, despite minor finishing and water resistance caveats.

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.