Heritage Narrative

The IWC-Porsche Design partnership began in 1978 with a shared ambition: apply Stuttgart’s lightweight engineering to Swiss horology. One result was this Titanium Triple Date Moonphase, reference 2387386. Its 32 mm sand-blasted case employed aerospace-grade titanium—a material virtually unknown in watchmaking at the time—while the clean, gauge-like dial followed Ferdinand A. Porsche’s form-follows-function philosophy. By integrating a full calendar and moonphase into a compact, anti-magnetic package, the model linked two disciplines: precision motoring instrumentation and mechanical timekeeping.

Technical Specifications

Movement:

IWC Calibre 37582 (automatic, 42-hour power reserve)

Case:

32 mm titanium, 10 mm thick, screw-down back, anti-magnetic soft-iron inner cage

Crystal:

Sapphire with anti-reflective coating

Dial / Functions:

Matte black dial; day and month apertures at 12, date pointer hand to scale, moonphase at 6; central hours, minutes, and seconds

Water Resistance:

30 m / 3 bar (factory rating)

Bracelet:

Integrated titanium link bracelet with signed deployant clasp

ConditionOverall

Grade:

Very good—light uniform surface wear; no deep scratches or bracelet stretch

Service Status:

Movement tested for amplitude and accuracy; no recent factory service recorded