Side by side

Grand Seiko SBGM245vsYema Superman Titanium Tourbillon CMM.31 Limited Edition

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

SBGM245
Grand SeikoSBGM245
MSRP $6,100
Superman Titanium Tourbillon CMM.31 Limited Edition
YemaSuperman Titanium Tourbillon CMM.31 Limited Edition
MSRP $13,000

At a glance

13 of 29 specs differ
Diameter
SBGM24540.5mm
Superman Titanium Tourbillon CMM.31 Limited Edition43mm
Power Reserve
SBGM24572h
Superman Titanium Tourbillon CMM.31 Limited Edition40h
Water Resistance
SBGM245200m
Superman Titanium Tourbillon CMM.31 Limited Edition300m
MSRP
SBGM245$6,100
Superman Titanium Tourbillon CMM.31 Limited Edition$13,000

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
40.5mm
43mm
Thickness
14.4mm
11.7mm
Lug-to-Lug
48.6mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
200m
300m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Black
Titanium

Movement

2 specs
Caliber
9S66
Yema CMM.31 Tourbillon
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$6,100
$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.

Grand Seiko SBGM245

Owners widely appreciate the Grand Seiko SBGM245 for its blend of sport and luxury, with one enthusiast highlighting its superior workmanship over quartz movements. However, opinions on its size vary, as one owner found the SBGM245 too large, preferring the comfort of a different variant. Overall, owners value the Grand Seiko SBGM245 for its refined craftsmanship, though its wearability is a point of personal preference.

Yema Superman Titanium Tourbillon CMM.31 Limited Edition

The Yema Superman Titanium Tourbillon CMM.31 Limited Edition is noted for its in-house titanium tourbillon movement offering a 105-hour power reserve and 200m water resistance, alongside a unique asphalt-grained dial. Owners find the 43mm size wearable, with one describing it as a contradictory "toolwatch" with exceptional movement craftsmanship. A reviewer flags the bracelet clasp's extension system as crude. On balance, owners and reviewers highlight the impressive movement and dial as key strengths of the Yema Superman Titanium Tourbillon CMM.31 Limited Edition.

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