Side by side

Spinnaker Spence 300vsYema Superman Slim CMM.20

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

Spence 300
SpinnakerSpence 300
MSRP $650
Superman Slim CMM.20
YemaSuperman Slim CMM.20
MSRP $2,372

At a glance

7 of 29 specs differ
Diameter
Spence 30040mm
Superman Slim CMM.2039mm
Power Reserve
Spence 30040h
Superman Slim CMM.2040h
Water Resistance
Spence 300300m
Superman Slim CMM.20300m
MSRP
Spence 300$650
Superman Slim CMM.20$2,372

Full specifications

Case

3 specs
Diameter
40mm
39mm
Thickness
11.5mm
9.95mm
Lug-to-Lug
48mm

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Aquamarine
Black

Movement

1 specs
Caliber
SII NH35A
Yema CMM.20

Pricing

1 specs
MSRP
$650
$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.

Spinnaker Spence 300

The Spinnaker Spence 300 is widely praised for its slim 10.9mm case and 40mm diameter, offering a comfortable and uncommon thin diver design at its price point. Reviewers and owners highlight its value, especially below $350, and its blend of retro design with modern specifications, including a 300m depth rating and a fully indexed bezel. Some owners, however, find the dial printing and bracelet finishing to be less refined, with one noting the bracelet's male end links as a drawback. The consensus is that the Spinnaker Spence 300 is highly regarded for its exceptional value and wearable dimensions, making it a strong contender for an everyday sports watch.

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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