Side by side

Seiko Ice DivervsYema Superman Slim CMM.20

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

Ice Diver
SeikoIce Diver
MSRP $900
Superman Slim CMM.20
YemaSuperman Slim CMM.20
MSRP $2,372

At a glance

11 of 29 specs differ
Diameter
Ice Diver45mm
Superman Slim CMM.2039mm
Power Reserve
Ice Diver70h
Superman Slim CMM.2040h
Water Resistance
Ice Diver200m
Superman Slim CMM.20300m
MSRP
Ice Diver$900
Superman Slim CMM.20$2,372

Full specifications

Case

5 specs
Diameter
45mm
39mm
Thickness
12.9mm
9.95mm
Lug-to-Lug
52.6mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Lume
LumiBrite
None

Movement

3 specs
Caliber
6R35
Yema CMM.20
Power Reserve
70h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$900
$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.

Seiko Ice Diver

Owners widely praise the Seiko Prospex Sea for its robust build, classic dive watch design, and excellent value, with many highlighting its strong lume and comfortable wearability. Reviewers consistently flag its superior bezel action and overall finishing as standout features for its price point. Some owners find the 43mm case size substantial, with one noting it felt big, thick, and heavy on a 6.5-inch wrist, though others consider it a perfect size. The movement's power reserve is noted as less than newer variants by one reviewer. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its classic design and robust build at an accessible price.

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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