Side by side
AVI-8 Bell X-1 Machbuster AutomaticvsSeestern S446 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Bell X-1 Machbuster Automatic—
S446 GMT39.5mm
Power Reserve
Bell X-1 Machbuster Automatic40h
S446 GMT41hh
Water Resistance
Bell X-1 Machbuster Automatic50m
S446 GMT100m
MSRP
Bell X-1 Machbuster Automatic$350
S446 GMT$299
Full specifications
Case
5 specsCategory
Pilot
GMT
Diameter
—
39.5mm
Lug-to-Lug
51mm
47mm
Lug Width
—
20mm
Water Resistance
50m
100m
Crystal & Dial
2 specsCrystal Shape
Flat
Domed
Dial Color
Black
Cream
Movement
5 specsCaliber
—
Seiko NH34A GMT
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
41hh
Jewels
25
24
Complications
None
GMT, Date
Pricing
1 specsMSRP
$350
$299
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