Side by side

Monta OceankingvsYema Superman Slim CMM.20

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

Oceanking
MontaOceanking
MSRP $2,550
Superman Slim CMM.20
YemaSuperman Slim CMM.20
MSRP $2,372

At a glance

9 of 29 specs differ
Diameter
Oceanking40mm
Superman Slim CMM.2039mm
Power Reserve
Oceanking40h
Superman Slim CMM.2040h
Water Resistance
Oceanking305m
Superman Slim CMM.20300m
MSRP
Oceanking$2,550
Superman Slim CMM.20$2,372

Full specifications

Case

5 specs
Diameter
40mm
39mm
Thickness
9.95mm
Lug Width
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
305m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Blue
Black

Movement

1 specs
Caliber
Monta M-22
Yema CMM.20

Pricing

1 specs
MSRP
$2,550
$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.

Monta Oceanking

Owners and reviewers widely praise the Monta Oceanking for its refined aesthetics, excellent fit and finish for its price point, and comfortable, supple bracelet with a micro-adjustment clasp. The watch features a legible dial with enlarged luminous markers and hands, a well-done glossy and deep bezel, and a svelte sub-41mm case with a shorter lug-to-lug. Some owners note minor gripes with bezel alignment and movement accuracy, while one reviewer found the tapering crown tricky to grip and the bezel had slight play. The Sellita SW300 movement provides a power reserve of either 42 or 56 hours, depending on the source, and the watch includes a date at six o'clock. Overall, owners and reviewers rate the Monta Oceanking highly for its comfortable wearability and tool-focused, sportier stance.

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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