細節
PATEK PHILIPPE UNUSUAL AND VERY EARLY STEEL CALATRAVA WRISTWATCH signed Patek Philippe & Co., Geneve, no. 175633, ref. 96, c. 1916
Case: Steel, marked FB, no. 2631100
Dial: Silvered, with applied batons for hour markers, white gold hands
Movement: Gilt, highly jewelled, with bimetallic balance and snail cam regulator
signed on case, dial, and movement
Case: Steel, marked FB, no. 2631100
Dial: Silvered, with applied batons for hour markers, white gold hands
Movement: Gilt, highly jewelled, with bimetallic balance and snail cam regulator
signed on case, dial, and movement