3088. 3088Y IWC. A stainless steel automatic calendar wristwatch with 8 days power reserve IWC. Montre bracelet en acier avec date mouvement automatique et réserve de marche 8 jours Model: Big Pilot Reference: IW500401 Date: Circa 2020 Movement: Jewelled automatic Dial: Black, signed Case: Brushed and polished tonneau form, screw down back, No.3425539 Strap/Bracelet: IWC black alligator leather Buckle/Clasp: Signed folding clasp Signed: Case, dial & movement Size: 46mm