Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsYema Pearldiver

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
Pearldiver
YemaPearldiver
MSRP $491

At a glance

9 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Pearldiver38mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Pearldiver40h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Pearldiver100m
MSRP
Flyboy Airmaster GMT Automatic$365
Pearldiver$491

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
40mm
38mm
Thickness
14mm
Lug-to-Lug
46mm
Lug Width
20mm
Water Resistance
50m
100m

Crystal & Dial

1 specs
Dial Color
Black
Steel

Movement

1 specs
Caliber
NH34

Pricing

1 specs
MSRP
$365
$491

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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 Pearldiver

Owners widely praise the Yema Pearldiver's vintage aesthetic, clean dial, and sub-40mm dimensions with short lug-to-lug, noting its in-house movement and solid build quality. Accuracy figures range from dead-on at 0 seconds per day to +2 seconds per day, though some owners have reported dead-on-arrival movements requiring returns. The bracelet clasp is described by one owner as "pretty cheap." Some find the design pedestrian and lacking uniqueness, with the faux lume color noted as too dark by one commenter. Overall, owners rate the Yema Pearldiver highly for its vintage appeal and wearable dimensions at the price.

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