Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsGrand Seiko SBGC253

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
SBGC253
Grand SeikoSBGC253
MSRP $13,200

At a glance

12 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
SBGC25344.5mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
SBGC25372h
Water Resistance
Flyboy Airmaster GMT Automatic50m
SBGC253200m
MSRP
Flyboy Airmaster GMT Automatic$365
SBGC253$13,200

Full specifications

Case

7 specs
Category
GMT
Chronograph
Diameter
40mm
44.5mm
Thickness
16.8mm
Lug-to-Lug
50mm
Lug Width
23mm
Material
316L Stainless Steel
Titanium
Water Resistance
50m
200m

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

3 specs
Caliber
NH34
9R86
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$365
$13,200

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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.

Grand Seiko SBGC253

The Grand Seiko SBGC253 is praised for its substantial yet surprisingly light feel due to high-intensity titanium, a captivating dial with polished accents, and an exceptionally smooth chronograph action. Its dual-color lume is noted as visually striking, though its distinction fades in low light, and the exceptional anti-reflective coating makes the sapphire crystal nearly disappear. Some find the pushers unappealing and the dial's asymmetry with an off-center logo unconvincing, though others praise its gorgeous case shape and consider it a beautiful showcase of Grand Seiko's capabilities. One owner swapped to a leather strap for enhanced comfort and aesthetics. Overall, owners rate the Grand Seiko SBGC253 highly for its unique case material and smooth chronograph execution, despite some polarizing design elements.

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