Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43mmvsAzimuth Astro Boy
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Royal Oak Offshore Selfwinding Chronograph 43mm

Astro Boy
Diameter
43mm
44mm
Thickness
n/a
12.2mm
Water Resistance
100m
highest
50m
Power Reserve
70h
n/a
MSRP
n/a
$2,828
Movement
4401
ETA 2842-2
Case
4 specsDiameter
43mm
44mm
Thickness
n/a
12.2mm
Finish
Stainless steel
n/a
Water Resistance
100m
50m
Crystal & Dial
1 specsDial Color
n/a
Black
Movement
2 specsCaliber
4401
ETA 2842-2
Power Reserve
70h
n/a
Pricing
1 specsMSRP
n/a
$2,828
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