This is a pendant watch from AEROWATCH, a Swiss pocket watch brand established in 1910. Model Number: 30817JA01 Movement: Quartz Size: 25.5mm Chain Length: 60-65cm (with a 5cm adjuster) Crystal: Mineral Glass Water Resistance: Not Water Resistant Swiss Made Includes a dedicated case, instruction manual, and guarantee. Please note that this item is also sold in our physical store and on other e-commerce sites, so we may remove the listing without notice. RY 08070939 EJMMM