Panerai · Manual Wind

OP XXVII

Unusually for Panerai, not an ETA base. The OP XXVII is built on the Minerva 16-17, a 16-and-three-quarter-ligne hand-wound calibre, and was introduced in 2008 for a run of 47 mm Radiomir special editions. It keeps the marks of that tradition — a swan's-neck regulator, Glucydur balance and KIF shock protection — and is chronometer-certified, which Panerai's ETA-based calibres of the period generally were not.