Recently, IWC launched two new Portofino manual winding eight-day power reserve watches. The new watch has a unique aesthetic charm, and further enriching the classic Portofino series. The first wristwatch (IW510115) uses a brown suede strap for the first time perfectly coordinating with a dark brown slate dial. The second wristwatch (IW510116) combines the steel Milanese bracelet and the dark blue dial for the first time giving it a distinctive look when on the exhibition stand.
Since its inception in 1984, the IWC Portofino collection has attracted the attentions from lovers of watches who are passionate about the Italian lifestyle. Today, the brand further expands this iconic series with the introduction of two new watches equipped with manual winding eight-day power reserve movements. In the first watch (IW510115), IWC used suede for the first time as a strap material. The second watch (IW510116), IWC provides a new combination of materials and colors. In this variant of the hand-wound classic design, the dark blue dial forms an pleasing contrast to the elegant steel Milanese bracelet.
Equipped with the 59210-type movement, the both new watches are able to accurately and reliably run a full 192 hours which is 8 days, and then it will automatically stop. In fact, the movement can run for nine days, and the early stop can ensure that the torque is constant during operation. The pointer power reserve display window is located between the 8 o’clock and 9 o’clock positions to remind the wearer to wind the movement in due course. Without a trimmer, the balance-oscillation frequency balances up to 28,800 vibrations per hour, and plus the Breguet gossamer formed by the traditionally curved watchmaking tradition ensures that the watch is accurate.
The wearer can watch the precise operation of the movement decorated with the Geneva pattern through the transparent sapphire crystal case back.
Technique detail: 
Basic Information
No: IW510115 or IW510116
Series: IWC
Brand: Protofino
Gender: Men
Movement
Movement model: 59210
Movement type: Manual Machinery
Balance wheel: Balance wheel with no trimmer
Vibration frequency: 28800 oscillations per hour
Hairspring: Breguet Hairspring
Number of gems: 30
Power reserve: 192 hours
Exterior
Class: Sapphire crystal
Markers: Roman
Dial color: Black or blue
Case diameter: 45mm
Case shape: Round
Case material: Stainless Steel
Case thickness: 11.7mm
Bezel: Round matte stainless steel bezel engraved with Bvlgari on
Crown: Small onion-shaped polished Stainless Steel flat crown
Back: Hollowed back
Band color: Light-brown or silver
Band type: Stainless Steel
Weight: No
Waterproof depth: 30m
Features
Date display
Dynamic display window
Sum up:
This double watch own different charm and each can match your life. No matter which one you will choose, it won’t disappoint you for its unique design and perfect function. So don’t hesitate to have one.
