Yellow Gold
Ingenieur 666 AD — Yellow Gold
Undated
18k yellow gold 666 AD with silver dial and date at 3; an early example dates to circa 1955.
Identifying details
- Date
Date display.
- Ingenieur lightning-bolt logo
“Ingenieur” script with the lightning-bolt emblem on the lower dial.
- Soft-iron inner case
Soft-iron inner case and dial forming a cage that shields the movement from magnetic fields.
Variants of 666 AD
Reference overview →| Variant | Production |
|---|---|
| Steel, Silver Dial | Undated |
| Steel, Black Lacquer Dial | Undated |
| Steel, Black Lacquer Dial · Türler Retailer Dial | Undated |
| Yellow GoldCurrent | Undated |
Case & movement
- Reference
- 666 AD
- Production
- Undated
- Case serials
- Case material
- 18k yellow gold
- Case diameter
- 36.5 mm
- Water resistance
- 100 m
- Crystal
- Acrylic (Plexiglas)
- Movement
- Automatic
More specifications (2)
- Date
Movement
IWC 8521
Date version of the calibre 852, used in the first 666 AD.
Automatic · 19,800 vph · 21 jewels