Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsPraesidus A-5 UDT

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
A-5 UDT
PraesidusA-5 UDT
MSRP $645

At a glance

8 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
A-5 UDT38mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
A-5 UDT40h
Water Resistance
Flyboy Airmaster GMT Automatic50m
A-5 UDT200m
MSRP
Flyboy Airmaster GMT Automatic$365
A-5 UDT$645

Full specifications

Case

4 specs
Category
GMT
Diver
Diameter
40mm
38mm
Lug Width
20mm
Water Resistance
50m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Black
Blue

Movement

1 specs
Caliber
NH34
Miyota 9015

Pricing

1 specs
MSRP
$365
$645

Follow this matchup

Get a note when AVI-8 Flyboy Airmaster GMT Automatic vs Praesidus A-5 UDT 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.

Praesidus A-5 UDT

The Praesidus A-5 UDT is noted for its historically inspired design, featuring an oversized crown cap and chain that pays homage to WW2 canteen watches. Reviewers highlight its functional dial with embossed, Super-LumiNova filled numerals and markers for legibility, alongside 200m water resistance and a 38mm brushed stainless steel case. Some owners find the 11.7mm thickness problematic, describing it as disproportionately tall. The watch's ana/digi functionality and connection to special operations forces are also praised. On balance, owners and reviewers appreciate the Praesidus A-5 UDT for its unique historical design elements and functional dial.

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.