Waxing crescent

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collectors and the curious.

Side by side

The watches side by side

General

Status
In production
In production
Introduced (differs)
2022
2024
Retail price (differs)
US$7,900
US$8,900

Case

Shape
Round
Round
Diameter
39 mm
39 mm
Thickness
13 mm
13 mm
Lug width (differs)
18 mm
20 mm
Material
Stainless steel
Stainless steel
Caseback
Display (sapphire)
Display (sapphire)
Crystal
Sapphire, Domed, Anti-reflective on both sides
Sapphire, Domed, Anti-reflective on both sides
Water resistance
50 m
50 m

Movement

Type
Automatic
Automatic
Origin
In-house
In-house
Power reserve
46 h
46 h
Frequency
28,800 vph (4 Hz)
28,800 vph (4 Hz)
Jewels
27
27
Functions (differs)
  • Chronograph function with minutes and seconds
  • Central hacking seconds
  • Central hacking seconds
  • Chronograph function with hours, minutes and seconds
Complications
  • Central seconds
  • Chronograph
  • Hacking (stop) seconds
  • Small seconds
  • Central seconds
  • Chronograph
  • Hacking (stop) seconds
  • Small seconds

Dial

Colour
White
White
Pattern
Matte
Matte
Indices
Mixed
Mixed
Hands
Leaf
Leaf

Bracelet

Type (differs)
Leather strap
Metal bracelet
Material
Not known
Stainless steel
Strap colour
Cream
Not known
IWC Schaffhausen Portofino Chronograph 39 IW391502 vs IWC Schaffhausen Portofino Chronograph 39 IW391503 – dialtone