MINERVA LARGE & EARLY SINGLE-BUTTON
CHRONOGRAPH WRISTWATCH SILVER
Minerva, Swiss, movement No. 1313217. Made circa 1915.
Fine, oversized and early, silver wristwatch with single-button
chronograph and register.
Three-body, polished, curved bezel, coin-edge band,
transparent snap-on back, hinged wire lugs, co-axial button in the
crown at 12 for the start/stop and return-to-zero functions of the
chronograph, "faux" crown at 6.
White enamel with black Arabic numerals, outer minutes and
fifths of a second divisions, outer red Arabic five-minute numerals,
subsidiary seconds and 30-minute registers. Blued steel spade
18 ''', matte gilt, 17 jewels, straight-line lever escapement, cut
bimetallic compensation balance, Breguet balance spring, index