Citizen Promaster DivervsYema Superman Slim CMM.20

The Citizen Promaster Diver is praised for its handsome dial made from recycled materials and its accurate Ecodrive movement, running +1 second in 7 days. Owners note potential difficulty maintaining charge in a large collection and minor alignment issues with the bezel and chapter ring. One owner reports an automatic movement with +20/-40 seconds a day accuracy. On balance, owners appreciate the Citizen Promaster Diver for its distinctive dial and reliable Ecodrive movement.

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.