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 $625
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 Sea43.8mm
Superman Tourbillon CMM.31 Limited Edition43mm
Power Reserve
Prospex Sea41h
Superman Tourbillon CMM.31 Limited Edition40h
Water Resistance
Prospex Sea200m
Superman Tourbillon CMM.31 Limited Edition300m
MSRP
Prospex Sea$625
Superman Tourbillon CMM.31 Limited Edition$13,000

Full specifications

Case

4 specs
Diameter
43.8mm
43mm
Thickness
12.8mm
11.7mm
Lug-to-Lug
48.7mm
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, index(es) and bezel
None

Movement

3 specs
Caliber
4R35
Yema CMM.31 Tourbillon
Power Reserve
41h
40h
Jewels
23
25

Pricing

1 specs
MSRP
$625
$13,000

Follow this matchup

Get a note when Seiko Prospex Sea vs Yema Superman Tourbillon CMM.31 Limited Edition gets more votes, a community discussion, or a price drop. No account needed.

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

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

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.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.