IWC - International Watch Co.

European Watch Clock and Jewellery Fair 1988 BF 328
IWC is introducing women’s versions of (from left) its Portofino,
Da Vinci and Ingenieur chronograph lines. The “junior” Da Vinci possesses
the most accurate moon-phase indicator available : it will vary by only
one day in 122 years... All these models are water-resistant, fitted
with a scratch-resistant sapphire crystal and optionally with a gold
bracelet. (IWC - International Watch Co.)