Side by side
Sinn U18vsZero West S4 Blackout P9427 Spitfire
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
U1844mm
S4 Blackout P9427 Spitfire44mm
Power Reserve
U1842h
S4 Blackout P9427 Spitfire38h
Water Resistance
U182,000m
S4 Blackout P9427 Spitfire100m
MSRP
U18$3,488
S4 Blackout P9427 Spitfire—
Full specifications
Case
7 specsCategory
Diver
—
Thickness
15.5mm
14.1mm
Lug-to-Lug
—
49.6mm
Material
high-strength
Stainless Steel
Finish
—
Brushed and polished
Water Resistance
2000m
100m
Caseback
—
Solid
Crystal & Dial
3 specsCrystal Shape
—
Flat
AR Coating
—
Inner
Indices
—
Applied
Movement
2 specsCaliber
SW300-1
ETA 2824
Power Reserve
42h
38h
Pricing
1 specsMSRP
$3,488
—
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