Side by side
Audemars Piguet Royal Oak Perpetual Calendar "150ᵀᴴ Anniversary" 41mmvsChristopher Ward The Twelve
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
Royal Oak Perpetual Calendar "150ᵀᴴ Anniversary" 41mm41mm
The Twelve40mm
Power Reserve
Royal Oak Perpetual Calendar "150ᵀᴴ Anniversary" 41mm40h
The Twelve38h
Water Resistance
Royal Oak Perpetual Calendar "150ᵀᴴ Anniversary" 41mm20m
The Twelve100m
MSRP
Royal Oak Perpetual Calendar "150ᵀᴴ Anniversary" 41mm—
The Twelve$1,495
Full specifications
Case
8 specsDiameter
41mm
40mm
Thickness
—
9.95mm
Lug-to-Lug
—
44.5mm
Lug Width
—
25mm
Material
Titanium
Stainless Steel
Finish
Titanium
Brushed + Polished + Sandblasted
Water Resistance
20m
100m
Caseback
—
Solid screw-down
Crystal & Dial
2 specsDial Color
—
Midnight Sun
Lume
None
SLN X1 BL C1
Movement
5 specsCaliber
5135
Sellita SW200-1
Beat Rate
0 vph
4 vph
Power Reserve
40h
38h
Jewels
0
26
Complications
None
GMT, Moonphase, Day-date, Date
Pricing
1 specsMSRP
—
$1,495
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