MINERVA AUTOMATIC CHRONOGRAPH GMT STEEL
Minerva, "Automatic Official Chronometer", case No. 730725,
Ref. A241. Made in the 1990s.
Fine, two-time-zone, stainless steel, self-winding, water-resistant
wristwatch with oval-button chronograph, registers, tachometer,
independently adjustable second-time-zone, date and a stainless
Three-body, polished, curved bezel, concave lugs, back with 6
screws, sapphire crystal.
Gray with applied luminous yellow gold indexes, outer minutes
and fifths of a second divisions, outermost tachometer scale to 400
units, subsidiary dials for the seconds, 30-minute and 12-hour
registers, second time zone, date aperture. Luminous yellow gold
Cal. 7750, 17 jewels, straight line lever escapement, monometallic
balance, shock-absorber, self-compensating flat balance-
spring, index regulator.