IWC Ingenieur Mecaquartz Chronograph Alarm Yellow Gold IW9515-02

The Ingenieur began in 1955 as IWC's anti-magnetic watch, and Gérald Genta reworked it in 1976 as the Ingenieur SL. The Mecaquartz Chronograph Alarm is one of the compact members of the line, in a round 34 mm case 9 mm thick, with stick hands and stick-and-dot markers under sapphire.

The same watch was made in several metals. IW3805-03 has this white dial in steel and IW3805-04 in steel and yellow gold, both on bracelets. In the solid gold IW9515 bracelet series, IW9515-01 pairs yellow gold with a black dial and IW9515-04 is white gold with a black dial. IW3815-07 is the strap counterpart of this watch, yellow gold with the same white dial. Next to the 34 mm Ingenieur SL Automatic (IW3505-01) it wears a touch thicker, at 9 mm against 8.6 mm.