Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsTudor Black Bay 58

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
Black Bay 58
TudorBlack Bay 58
MSRP $5,350

At a glance

18 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Black Bay 5839mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Black Bay 5865h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Black Bay 58200m
MSRP
Flyboy Airmaster GMT Automatic$365
Black Bay 58$5,350

Full specifications

Case

9 specs
Category
GMT
Diver
Diameter
40mm
39mm
Thickness
11.7mm
Lug-to-Lug
46mm
Lug Width
20mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
50m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

2 specs
Crystal Shape
Flat
AR Coating
Inner

Movement

6 specs
Caliber
NH34
MT5400-U
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
65h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$365
$5,350

Follow this matchup

Get a note when AVI-8 Flyboy Airmaster GMT Automatic vs Tudor Black Bay 58 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.

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.

Tudor Black Bay 58

The Tudor Black Bay 58 is widely praised for its superb wearing experience, perfect proportions, and comfortable wearability, with owners anticipating it becoming a Tudor classic. Reviewers highlight its substantial, rugged build quality and significant value, rivaling more expensive timepieces. One owner notes the clasp's sharp shield as a minor annoyance.

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.