Manufacturer: Ebauches SA
Model: Prototip Watch (ETA / ESA) (First Dynotron Calibre with Electronically Controlled Balance Motor)
Reference: N/A
Movement: Electro-Mechanic
Complication: Date
Calibre: ESA 9150
Year: 1968
Case Diameter: 35.1 mm without / 36.5 mm with crown
Case Material: Stainless steel
Lug width: 18 mm
Bracelet / Strap: Blue Nato / Stainless steel buckle
Overall Condition: EXCELLENT (8-9 out of 10)