1. Strong watch crown and 2 push buttons for chrono function. Chrono feature is an analog stopwatch with zero adjust for precise time measurement, center chrono second hand Above sub-dial shows chrono feature minutes measurement, right sub-dial is the present time second hand, lower sub-dial shows time in 12 hours, instant setting date calendar by the watch crown + Date Window 2. High grade stanless steel case and band. 3. Precision Japan Quartz movement with stopwatch function. All the crown 4. Chrono buttons are screw type to ensure the water resistant. 5. The case measures 40 mm diameter excluding the crown. 6. Come with papers gift box but no manual The price include International Registered Air Mail shipping cost to world