EXTRA FORT STAINLESS STEEL
Eberhard & Co., La Chaux-de-Fonds, Made in the 1950s.
Fine, stainless steel wristwatch with square button
chronograph, register and tachymeter.
Three-body, polished and brushed, curved lugs,
inclined bezel, snap-on case back.
Silvered, outer blue tachymeter scale, Arabic 12
and 6 and faceted indexes in gilt, subsidiary dials
for running secondsand 30 minute registers. Gilt
Cal. 1400, rhodium-plated, 17 jewels, straight line
lever escapement, monometallic balance with screws,
shock absorbers, self-compensating flat balance
spring, micrometer regulator.