DE GRISOGONO INSTRUMENTO TONDO
De Grisogono, Genève, "Instrumento Tondo," case No.
007911. Made in the 2000's.
Fine and unusual, curved, horizontal oval, self-
winding, water-resistant, PVD-coated stainless steel
wristwatch with 24 hour indication, power reserve and
a stainless steel De Grisogono double deployant clasp.
Two-body, polished and brushed, transparent case
back with 4 screws, flat bezel, mobile lugs, faceted
black diamond-set winding crown, sapphire crystals.
Guilloche black with radial and graduated luminous
Arabic numerals, inner oval shaped minute
track, subsidiary dial for the 24 hour indicator at
12, up and down sector for the power reserve at 6.
Luminous steel dauphine hands.
Cal. based ETA 2892A2, black finish, 21 jewels,
straight-line lever escapement, monometallic balance,
shock absorber, self compensating flat balance
spring, micrometer regulator, hack mechanism.