Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsSeestern S443 Column Wheel Chronograph

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

At a glance

14 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
S443 Column Wheel Chronograph40mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
S443 Column Wheel Chronograph45hh
Water Resistance
Flyboy Airmaster GMT Automatic50m
S443 Column Wheel Chronograph50m
MSRP
Flyboy Airmaster GMT Automatic$365
S443 Column Wheel Chronograph$10

Full specifications

Case

4 specs
Category
GMT
Chronograph
Thickness
13mm
Lug-to-Lug
48.6mm
Lug Width
20mm

Crystal & Dial

3 specs
Dial Color
Black
Pink
Indices
Applied
3D
Lume
None
Super BGW9

Movement

6 specs
Caliber
NH34
Seagull ST1901
Type
Automatic
Manual
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
45hh
Jewels
25
21
Complications
None
Chronograph, Column Wheel

Pricing

1 specs
MSRP
$365
$10

Follow this matchup

Get a note when AVI-8 Flyboy Airmaster GMT Automatic vs Seestern S443 Column Wheel Chronograph 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.

Seestern S443 Column Wheel Chronograph

Owners widely praise the Seestern S443 Column Wheel Chronograph for its affordable mechanical chronograph movement with a column wheel, derived from the Venus 175. Some owners appreciate the watch's overall aesthetic, with one noting a preference for the black-yellow variant. The ST19 movement's execution is generally well-regarded, though one owner found the chronograph minute counter could stick, a common issue that may require a watchmaker, while another noted sticky chrono pushers after patina development on the bronze case. The ST19 movement lacks an hours totalizer, and its assembly is not as refined as luxury timepieces, though comparable to entry-level automatics. One owner finds the "hand winding" script font on the dial to be a design flaw. Overall, owners rate the Seestern S443 Column Wheel Chronograph highly for its value as a column wheel chronograph, despite minor assembly and functional quirks.

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.