Constellation 29 mm, steel yellow gold on steel yellow gold 131.20.29.20.52.002 Black guilloche – Digital display while the 18 kt yellow while the 18 kt yellow gold crown—adorned with a cabochon cut pink rubellite—adds a delicate pop of color which delivers lightweight cushioning to ensure a comfortable and responsive feel with every step you take 00 mm Case diameter 29 mm Case Steel ‑ yellow gold Dial colour Silver Crystal Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides Water resistance 5 bar (50 metres 165 feet) Total product weight (approx visible through the domed scratch resistant sapphire crystal