Reference:

• 8557TVDD-a1

Movement:

• Mechanical chronograph movement, self-winding Valjoux 7750, 28,800 A/h
• Glucydur balance wheel, Nivaflex mainspring
• 25 jewels
• Power reserve 48h
• Incabloc shock protection
• Ball-bearing rotor with heavy metal hoop
• Etachron precision adjustment via eccentric and regulator hand
• 147 components

Case:

• Tripartite stainless steel construction (316L) with non-reflecting matt finish
• D 47.5 mm, H 17 mm
• 2 cylinder pushers
• Hardened mineral glass (domed)
• Screw-in stainless steel caseback with glass window
• Grippy special crown (with double O-seals)
• Shock proof according to DIN 8308
• Anti-magnetic DIN 8309
• Waterproof to 30 m (3 ATM) tested according to DIN 8310

Functions:

• Hours, minutes, small seconds (anhaltbar) bei 9h
• Day of week, date (quickset)
• Seconds, minutes, and hours stop function

Dial:

• Black, ZENO Bauhaus luminous numerals
• Skeleton hands with inactive, environmentally friendly luminous coating

Bracelet:

• Calf leather strap rombordé, domed, steel buckle