Casio Watch with Japanese quartz movement LA 20WH 1B WR 31, strip

Water Resistant, LED Light, 1/100 second stopwatch Daily Alarm, Hourly Time Signal, Auto Calendar (28 days in February) 12/24 Hour Formats, Battery: CR1616 Approx. battery life: 5 years, Module 3284 Size of case / total weight: 34.5 x 30.4 x 8.6mm / 20g