A4327 Rare Beautiful Citizen Men's Watch Alarm Four Hand 4H Manual Winding Working The Citizen Alarm was first released in 1958 as Japan's first alarm watch, and sales continued for over 10 years. It was a watch that attracted a lot of attention at the time because it was very rare and difficult to equip mechanical watches with new functions. When the hour hand reaches the time set by the alarm hand, a small hammer mounted on the movement rapidly strikes the pin on the back cover. This mechanism is very similar to the mechanism of the Vulcain Cricket alarm watch. Cricket is a word that means cricket in English, and as the name suggests, the sound of the alarm is very similar to the chirping of a cricket. 【Size】 Brand: CITIZEN Model: Ref.5150811 Movement: 17 jewels, manual winding, alarm function Frequency: 18000 vibrations per hour, 5 vibrations per second Bezel: Silver Dial: Silver Size: Case diameter/diameter 40mm (including crown) / 37mm (excluding crown) Thickness 12.3mm, belt width 18mm Wrist circumference: 18.5cm Case material: Stainless steel Band: Stainless steel Condition Time: Alarm, time adjustment confirmed by crown operation. It works without any problems, and I don't feel any lag (this is just a reference value) Since it is a used item, please refrain from purchasing if you are looking for a perfect item or if you are nervous. We cannot accept returns after purchase, so thank you for your understanding. Silver dial manual winding watch with Parashock function. - Brand: Citizen - Model: Manual winding watch - Material: Stainless steel - Function: Parashock - Dial color: Silver - Hand color: Silver - Index: Bar index Thank you for viewing.