Side by side

Sugess Seestern Heritage S436-2 BB GMTvsYema Superman Tourbillon CMM.31 Limited Edition

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

Seestern Heritage S436-2 BB GMT
SugessSeestern Heritage S436-2 BB GMT
MSRP $299
Superman Tourbillon CMM.31 Limited Edition
YemaSuperman Tourbillon CMM.31 Limited Edition
MSRP $13,000

At a glance

14 of 29 specs differ
Diameter
Seestern Heritage S436-2 BB GMT40mm
Superman Tourbillon CMM.31 Limited Edition43mm
Power Reserve
Seestern Heritage S436-2 BB GMT35h
Superman Tourbillon CMM.31 Limited Edition40h
Water Resistance
Seestern Heritage S436-2 BB GMT10m
Superman Tourbillon CMM.31 Limited Edition300m
MSRP
Seestern Heritage S436-2 BB GMT$299
Superman Tourbillon CMM.31 Limited Edition$13,000

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
40mm
43mm
Thickness
12.2mm
11.7mm
Lug-to-Lug
48mm
Lug Width
20mm
22mm
Water Resistance
10m
300m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Black
Steel
Lume
Tritium
None

Movement

4 specs
Caliber
Seiko NH34
Yema CMM.31 Tourbillon
Beat Rate
3 vph
28,800 vph
Power Reserve
35h
40h
Complications
GMT, Moonphase, Date
None

Pricing

1 specs
MSRP
$299
$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.

Sugess Seestern Heritage S436-2 BB GMT

Owners widely praise the Sugess Seestern Heritage S436-2 BB GMT for its 39mm sizing, 12mm thinness, and light yet solid feel, with many appreciating its legibility due to the matte dial, clear crystal, and strong lume, though one owner flags the lume as a weak point. The case finishing is considered excellent, and the blue dial and satin finish are favorably compared to alternatives. Some owners report issues with a loose bezel, with others finding it improved after tuning, and one owner notes the seconds hand is too short. The bracelet clasp lacks sufficient micro-adjustment and screw pins are difficult to remove. On balance, owners rate the Sugess Seestern Heritage S436-2 BB GMT highly for its comfortable wearability and attractive finishing at the price.

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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