Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsYema Superman Tourbillon CMM.31 Limited Edition

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

Flyboy Airmaster GMT Automatic
AVI-8Flyboy Airmaster GMT Automatic
MSRP $365
Superman Tourbillon CMM.31 Limited Edition
YemaSuperman Tourbillon CMM.31 Limited Edition
MSRP $13,000

At a glance

10 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Superman Tourbillon CMM.31 Limited Edition43mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Superman Tourbillon CMM.31 Limited Edition40h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Superman Tourbillon CMM.31 Limited Edition300m
MSRP
Flyboy Airmaster GMT Automatic$365
Superman Tourbillon CMM.31 Limited Edition$13,000

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
40mm
43mm
Thickness
11.7mm
Lug Width
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Black
Steel

Movement

1 specs
Caliber
NH34
Yema CMM.31 Tourbillon

Pricing

1 specs
MSRP
$365
$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.

AVI-8 Flyboy Airmaster GMT Automatic

Owners widely praise the AVI-8 Flyboy Airmaster GMT Automatic for its robust build quality, intricate three-timezone function, and crisp dial texture. The watch is noted for its wearable 41mm case size and 48.5mm lug-to-lug, with an internally positioned GMT complication that maintains a clean dial appearance. Some owners report the stock leather strap feels cheap and limits strap changing options. On balance, owners rate the AVI-8 Flyboy Airmaster GMT Automatic highly for its solid finishing and value, particularly highlighting the dial's depth and texture.

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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