Side by side

Longines HYDROCONQUESTvsYema Superman Slim CMM.20

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

HYDROCONQUEST
LonginesHYDROCONQUEST
MSRP $2,350
Superman Slim CMM.20
YemaSuperman Slim CMM.20
MSRP $2,372

At a glance

8 of 29 specs differ
Diameter
HYDROCONQUEST39mm
Superman Slim CMM.2039mm
Power Reserve
HYDROCONQUEST40h
Superman Slim CMM.2040h
Water Resistance
HYDROCONQUEST300m
Superman Slim CMM.20300m
MSRP
HYDROCONQUEST$2,350
Superman Slim CMM.20$2,372

Full specifications

Case

4 specs
Thickness
12.2mm
9.95mm
Lug-to-Lug
48.1mm
Lug Width
19mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Grey
Black

Movement

1 specs
Caliber
L888.5
Yema CMM.20

Pricing

1 specs
MSRP
$2,350
$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 HYDROCONQUEST

Owners widely praise the Longines HydroConquest's dial and finishing, with one owner finding it superior to a Rolex Submariner. The movement is noted as well-regulated, losing about 2 seconds per day. The watch is considered a versatile everyday or business-casual option, offering good value. However, owners criticize the bracelet for lacking tool-less micro-adjustment and describe winding the crown as a nuisance. Some in the line report tiny GMT markers that are difficult to read and the absence of a quick date adjust feature. Overall, owners rate the Longines HydroConquest highly for its finishing and value.

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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