Side by side

Seiko Prospex SeavsYema Superman Tourbillon CMM.31 Limited Edition

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

Prospex Sea
SeikoProspex Sea
MSRP $795
Superman Tourbillon CMM.31 Limited Edition
YemaSuperman Tourbillon CMM.31 Limited Edition
MSRP $13,000

At a glance

12 of 29 specs differ
Diameter
Prospex Sea34mm
Superman Tourbillon CMM.31 Limited Edition43mm
Power Reserve
Prospex Sea40h
Superman Tourbillon CMM.31 Limited Edition40h
Water Resistance
Prospex Sea200m
Superman Tourbillon CMM.31 Limited Edition300m
MSRP
Prospex Sea$795
Superman Tourbillon CMM.31 Limited Edition$13,000

Full specifications

Case

5 specs
Diameter
34mm
43mm
Thickness
8.7mm
11.7mm
Lug-to-Lug
40.8mm
Lug Width
16mm
22mm
Water Resistance
200m
300m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Steel
Lume
LumiBrite on hands and index(es)
None

Movement

2 specs
Caliber
6N01
Yema CMM.31 Tourbillon
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$795
$13,000

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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 Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many appreciating its comfortable wearability due to its case shape and lug-to-lug distance. Reviewers consistently highlight its impressive finishing and classic dive watch design, often noting the bright LumiBrite lume. Some owners find the watch to be large, thick, and heavy, while others consider it the perfect size, indicating a split opinion on wearability for smaller wrists. The power reserve from some movements is noted as less than newer variants, and the clasp quality receives mixed feedback. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional finishing and value proposition in the dive watch market.

Yema Superman Tourbillon CMM.31 Limited Edition

Owners praise the Yema Superman Tourbillon CMM.31 Limited Edition as an incredible and crazy watch, appreciating its unnecessary tourbillon complication and impressive specifications at a remarkable price point. The titanium construction contributes to comfort despite the 43mm case size. One reviewer notes the bracelet clasp's extension system is somewhat crude. On balance, owners and reviewers rate the Yema Superman Tourbillon CMM.31 Limited Edition highly for its compelling tourbillon feature at an accessible price.

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