There is indeed a story behind that. Some years ago I took my little girl for her first swim in the Mediterranean Sea. It was the first time she had ever been in the sea. She loved it. I could not get her out. I set my bezel and said to her when the big hand gets to the triangle it is time to go. I never reset it at 12 and now along with all the other knocks and marks on this watch serves as a reminder of a happy fun, amazing and priceless time. Lots more to come I hope!