The IWC Portofino Chronograph (IW391007) combines understated elegance with precision craftsmanship. Part of IWC’s Portofino collection, this chronograph features a timeless design with a sunburst silver dial, complemented by a classic stainless steel case and a black alligator leather strap. Powered by IWC’s reliable automatic chronograph movement, it offers both sophisticated styling and high performance. This model is perfect for those who appreciate the balance of traditional design and modern functionality.
IWC
IWC Portofino Chronograph 42mm – IW391007
Model Case:
- Diameter: 42 mm
- Material: Stainless steel with polished finish
- Shape: Round case with a clean, refined profile
- Bezel: Polished stainless steel bezel
- Winding Crown: Stainless steel with a simple, elegant design
- Crystal: Sapphire crystal with anti-reflective coating on both sides
- Water Resistance: 30 meters (100 feet), suitable for everyday wear but not for professional diving
Movement:
- Type: Automatic chronograph movement
- Caliber: IWC Caliber 79320 (based on Valjoux 7750)
- Precision: -4/+6 seconds per day (typical for the movement)
- Functions:
- Chronograph with 30-minute and 12-hour counters
- Date function at 3 o’clock position
- Small seconds subdial at 6 o’clock
- Power Reserve: Approximately 44 hours
- Winding: Self-winding via a rotor
Bracelet/Strap:
- Type: Brown alligator leather strap
- Material: High-quality alligator leather with a glossy finish
- Clasp: Stainless steel pin buckle
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