IWC · Ingenieur
Ingenieur SL Perpetual Calendar / Strap / English
Ref. IW3540-03
The ref. IW 3540-003 has a yellow gold case and a leather strap. Earlier versions were powered by caliber 35780; later ones (post 1989) feature caliber 35782.
- Release year
- 1987
- Case diameter
- 34.5 mm
- Water resistance
- 30 m
- Case material
- Yellow Gold
- Crystal
- Sapphire
- Dial
- White
- Movement
- IWC caliber 35782
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