Side by side

Seiko 5 Sports SNXS seriesvsYema Superman Slim CMM.20

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

5 Sports SNXS series
Seiko5 Sports SNXS series
MSRP $415
Superman Slim CMM.20
YemaSuperman Slim CMM.20
MSRP $2,372
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seiko 5 Sports SNXS series

Owners widely praise the Seiko 5 Sports SNXS series for its attractive sunburst dials, vintage aesthetic, and excellent value, with many highlighting its comfortable wearability. Reviewers and owners consistently flag the stock bracelet as a significant weakness, often described as jangly, hair-pulling, and difficult to adjust, with a flimsy clasp. The Hardlex crystal is noted as being prone to scratching, and the caseback is described as thick, contributing to a bulky appearance. Accuracy with the movement is reported to be variable, ranging from +/- 1-2 seconds per day to +/- 20 seconds or more, and the movement itself lacks hacking and hand-winding. On balance, owners and reviewers rate the Seiko 5 Sports SNXS series highly for its stunning dials and value, despite significant criticisms of its bracelet and movement limitations.

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.

At a glance

14 of 29 specs differ
Diameter
5 Sports SNXS series37.4mm
Superman Slim CMM.2039mm
Power Reserve
5 Sports SNXS series41h
Superman Slim CMM.2040h
Water Resistance
5 Sports SNXS series100m
Superman Slim CMM.20300m
MSRP
5 Sports SNXS series$415
Superman Slim CMM.20$2,372

Full specifications

Case

7 specs
Category
Sport
Diver
Diameter
37.4mm
39mm
Thickness
12.5mm
9.95mm
Lug-to-Lug
44.7mm
Lug Width
18mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

3 specs
Crystal
Hardlex
Domed Sapphire
Crystal Shape
Curved
Flat
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
4R36
Yema CMM.20
Power Reserve
41h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$415
$2,372
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