Vacheron Constantin 4072

Vacheron Constantin A RARE STAINLESS STEEL CHRONOGRAPH WRISTWATCH WITH REGISTERS REF 4072 MVT 422606 CASE 262237 CIRCA 1939 stainless steel diameter 33 mm , • manual winding lever movement, 21 jewels • silvered dial, Roman numerals and baton indexes, subsidiary dials for constant seconds and 45-minute register, inner minute track, outer tachymeter scale calibrated for 400 units, blued steel hands • stainless steel case, snap-on back • case, dial and movement signed