Big Ingenieur 7‑Day Automatic 45.5 mm, Steel Black Dial (Leather) (IW500501)

Stainless steel case ~45.5–45.7 mm; black dial; 7‑day power reserve display at 3; date at 6; exhibition caseback; 120 m WR; in‑house cal. 51113 with Pellaton winding; alligator strap.