Sinn 1990's

Name: Sinn
Size: 40mm
Movements: Lemania 1873/1877
Time display: 24 hour 12 on top
Chronograph : to 1/5th second, 30-minute and 12-hour totalizers
Dial colors: black
Text on dial: Sinn
Case: Stainless steel, gold platted
Crystal: sapphire mineral
Bezel: aviation slide rule