Tudor Black Bay Mens Watch Tudor Black Bay stainless steel automatic mens watch. Black chronograph dial, date, case diameter: 41mm, wrist size: 20.5cm, Swiss made. Ref# 79360N. With Tudor stainless steel bracelet and clasp. With Certificate of Authenticity, Tudor International Guarantee card dated 08/04/2021 and Tudor box. Balance of 5 year Tudor manufacturer warranty applies. (Pre-owned)