Manufacturer details checked
IWC Schaffhausen
IWC Schaffhausen IW545901
Portugieser Hand Wound Tourbillon Day Night
- Reference
- IW545901
- Dial Color
- Black
- Case
- 18 ct Armor Gold®
- Strap
- Black alligator leather strap by Santoni
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Specifications checked against the linked manufacturer page. The image source and display method are identified with the illustration.
Manufacturer specifications checked for this reference
These specifications were checked against the manufacturer page for this exact reference.
- Reference
- IW545901
- Dial Color
- Black
- Case
- 18 ct Armor Gold®
- Strap
- Black alligator leather strap by Santoni
- Diameter
- 42.4 mm
- Movement
- Manual-winding, IWC-manufactured movement
- Strap width
- 22 mm
- Buckle width
- 18 mm
- Case
- 18 ct Armor Gold®
- Diameter
- 42.4 mm
- Height
- 10.8 mm
- Water Resistance
- 6 Bar
- Back case
- With synthetic sapphire crystal
- Caliber
- 81925
- Movement type
- Manual-winding
- IWC-manufactured movement
- Yes
- Power Reserve
- 84 hours
- Frequency
- 28800 Vph (4 Hz)
- Components
- 195
- Jewels
- 22
Checked 2026-09-27 · Regional scope: manufacturer Europe · Manufacturer specifications; individual watches may vary.
Original manufacturer wording is retained for source data without a reviewed translation.
Recorded discovery details.
- Brand
- IWC Schaffhausen
- Reference token
- IW545901
- Collection candidate
- Portugieser
- Family candidate
- Not established
- Product type
- Watch candidate
Official discovery source
The exact token was retained from a stored official manufacturer URL or feed. The source supports discovery, but does not by itself verify every model detail.
Open official manufacturer page ↗Source record: iwc-official-current-catalog-20260919 · Manufacturer details checked; editorial publication pending.
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These are discovery candidates, not verified alternatives or product variants.