Patek Philippe
5261R-001 Aquanaut
Rounded octagon
Sapphire crystal case back
Rose gold
39.9 mm (10 - 4 o'clock)
30m
10.9 mm
Blue-gray, embossed with Aquanaut pattern
Gold applied numerals with white luminescent coating
Self-winding mechanical movement
26‑330 S QA LU
Annual calendar, day and month by hands, date in an aperture, moon phases, and sweep seconds.
Composite material
Blue-gray
Patented fold-over clasp