It is a 1970s Omega Memomatic Ref.166.072 model with an alarm function and water resistance. It features the Caliber 980, which includes both an alarm function and a quick-change calendar function. The crown at the 4 o'clock position is used to wind the alarm mainspring and set the alarm time while the watch is in the case. The button at the 2 o'clock position is used to switch the alarm off when it is in the case, activate the alarm in the first position, and set the alarm time by pulling it to the second position and operating the crown at the 4 o'clock position. The button at the 3 o'clock position allows for a quick forward movement of the calendar.
In addition to the alarm function and calendar mechanism, this vintage timepiece also possesses features such as water resistance and automatic winding, which are characteristic of higher-year models. The watch showcases a colorful and vibrant gray dial and an eye-catching screw-back waterproof case, embodying the spirit of the era. The original bracelet (model 1098, suitable for a wrist size of up to 21cm) is included.