This is the Cheval Design Studio S-431, a quartz wristwatch with moon phase and triple calendar. - Brand: Cheval - Color: Gold/Black - Design: Chronograph - Material: Stainless steel/Leather - Model Number: S-431 ⭐︎This item is treated as junk as its operation has not been confirmed. ⭐︎Please purchase only if you understand that this is a used item. ☆This product has been purchased from a "pre-owned luxury goods market" after being authenticated, so please rest assured. Thank you for viewing.