Portofino Chronograph IW391006

Portofino Chronograph IW391006

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42mm, Black
IWC
IWC
The history of the brand in the watch
The Portofino Chronograph is a watch that exquisitely combines the elegance of a dress watch with sporty energy. The unique case, Inspired by IWC’s historic pocket watch design and the watch designs that led the brand’s revival in the 80s, Reveals the Portofino’s unwavering identity. The particularly convex case, Thanks to the thin middle case and tapered lug design, Offers an incredibly comfortable fit for its 42 mm size.
Dial color
Black
Glass
Sapphire crystal
Case material
Stainless steel
Case diameter
42mm
Case thickness
13.5mm
Bracelet material
Stainless steel
Bracelet types
Milanese mesh bracelet
Bezel material
Stainless steel
Movement
Self-winding
Caliber
Cal. 79230
Frequency
28, 800 vibrations
Power reserve
About 44 hours
IWC Portofino Chronograph IW391006
Portofino Chronograph IW391006
Portofino Chronograph IW391006
42mm, Black
₩6,800,000
IWC
IWC
Rolex price increase in the first half of 2026
Rolex price increase in the first half of 2026
Summary of Major Model Price Increase Rates
Tudor 2024 
Introduction of new product
Tudor 2024 Introduction of new product
Separately and together with Rolex
When selling a watch, this is 
Let's remember
When selling a watch, this is Let's remember
How do I minimize the depreciation of my watch?
Between luxury and retro
somewhere
Between luxury and retro somewhere
Submariner Date Ref. 116613LB
not changing
old friend
not changing old friend
Explorer 1 evolution process
The uniqueness presented by nature
The uniqueness presented by nature
The world of stone dials
Rolex has been discontinued 
see you again
Rolex has been discontinued see you again
Keep an eye on models that have ended production, Part 2
Datejust 
Purchasing Guide 2
Datejust Purchasing Guide 2
Summary of dial colors by index
VIVER
watchmaking class
VIVER watchmaking class
This is also possible on VIVER.
rolex supply,
Will it increase?
rolex supply, Will it increase?
New Rolex production facility... As early as 2024