01About this watch
IWCPortofino Automatic White Dial
The IWC Portofino Automatic Ref. 3513 with white dial in stainless steel from around 1990 has recently received a full service in November 2026, during which the movement was cleaned, oiled and regulated. The caliber 37521 is running with excellent timekeeping values and especially strong amplitude. The watch was professionally cleaned and inspected, and the 34 mm case has been high-gloss polished. It is fitted with the original sapphire crystal and a new leather strap. Cosmetically, the watch presents itself in a clean and well-kept state, making it a compact, understated dress watch from the Schaffhausen manufacture.
02Specifications
Technical details
- Brand
- IWC
- Model
- Portofino Automatic White Dial Serviced 11/2026 [REF. 3513]
- Dial Color
- White
- Diameter
- 34mm
- Lug Width
- 18mm
- Weight
- 35g
- Case Material
- Steel
- Original glas
- Yes
- Glass
- Sapphire glass
- Water Resistance
- No guarantee / Not tested
- Year of Manufacture
- ~1990
- Bracelet Length
- 23,5cm
- Internal Number
- 11004
03Movement
Timegrapher readings
- Movement
- IWC 37521
- Type of Movement
- Automatic
- Powerreserve [Manufacturer information]
- 42h
-5 s/d
Rate
Deviation per day
285°
Amplitude
Swing of the balance wheel – a measure of the movement's power
Measured on the timegrapher in our workshop.
04Service
Work carried out
Serviced 11/2026
- Movement cleaned & oiled
- Movement regulated
- Professionally cleaned and inspected
- High-gloss polished casing
- New leather strap
05In the box
What you receive
- The watch
- Transport box
- In-house authenticity certificate
06Legal
Notes & manufacturer information
Manufacturer information
IWC Schaffhausen (branch of Richemont International SA), Baumgartenstrasse 15, CH‑8200 Schaffhausen / CH‑8201 Schaffhausen, Schweiz
Responsible person in the EU
Richemont Northern Europe GmbH, Landsberger Straße 302–306, 80687 München, Deutschland
Aigner & Fuchs · Passau
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Passau, city of three rivers
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