Side by side

Seiko Prospex SPEEDTIMERvsYema Superman Tourbillon CMM.31 Limited Edition

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

Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $3,000
Superman Tourbillon CMM.31 Limited Edition
YemaSuperman Tourbillon CMM.31 Limited Edition
MSRP $13,000

At a glance

15 of 29 specs differ
Diameter
Prospex SPEEDTIMER42.5mm
Superman Tourbillon CMM.31 Limited Edition43mm
Power Reserve
Prospex SPEEDTIMER45h
Superman Tourbillon CMM.31 Limited Edition40h
Water Resistance
Prospex SPEEDTIMER100m
Superman Tourbillon CMM.31 Limited Edition300m
MSRP
Prospex SPEEDTIMER$3,000
Superman Tourbillon CMM.31 Limited Edition$13,000

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
42.5mm
43mm
Thickness
15.1mm
11.7mm
Lug-to-Lug
50mm
Lug Width
20mm
22mm
Water Resistance
100m
300m

Crystal & Dial

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

Movement

3 specs
Caliber
8R46
Yema CMM.31 Tourbillon
Power Reserve
45h
40h
Jewels
34
25

Pricing

1 specs
MSRP
$3,000
$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 SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER for its attractive vintage-inspired design and compact 39mm size, with one owner finding the red dial unique and gorgeous. Reviewers and owners note the solar-powered quartz movement, with one owner considering $700 expensive for this specification and another wishing for a thinner case. The SPEEDTIMER is described as a sturdy and reliable everyday watch, though one owner questioned its resale value. Overall, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER for its stylish, compact design and solar functionality, despite some finding the price point and case thickness slightly high.

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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