Home / Brands / IWC / Portugieser / IW371631 IWC Portugieser IW371631 41mm · Ceramic, Titanium, All Black · Caliber 69355 · 30m
IWC Schaffhausen Portugieser Chronograph Ceratanium®
Brand IWC Full reference IW371631 Collection Portugieser Case diameter 41mm Case material Ceramic, Titanium, All Black Water resistance 30m Movement Automatic Caliber 69355 Power reserve 46 hours Functions / complications Small Seconds, Chronograph Dial color Black Bracelet / strap Rubber Copy page link
Related references — same collection Shared specifications help discovery; these links do not assert a predecessor or successor relationship.
Sources & record notes Displayed specifications follow the most complete source record. Other source records are retained below; conflicting values are not silently combined. The Watch Pages.
The Watch Pages · IWC Schaffhausen IW371631 Original collection: Not recorded
Technical Specifications / Date Added: February 26, 2026
Technical Specifications / Reference: IW371631
Technical Specifications / Brand: IWC Schaffhausen
Technical Specifications / Case Size: 41mm
Technical Specifications / Case Material: Ceramic, Titanium, All Black
Technical Specifications / Dial Color: Black
Technical Specifications / Movement: Automatic
Technical Specifications / Caliber: 69355
Technical Specifications / Power Reserve: 46 hours
Technical Specifications / Water Resistance: 30m
Technical Specifications / Strap Material: Rubber
Technical Specifications / Strap Color: Black
Technical Specifications / Buckle Type: Pin
Technical Specifications / Style: Sporty
Technical Specifications / Special Features: Open Case Back, Limited Edition, Water Resistant
Technical Specifications / Limited Edition: Limited to 1500 pieces
Technical Specifications / Complications: Small Seconds, Chronograph WatchTraderHub · IWC Schaffhausen IW371631 Original collection: Portugieser
structured_data / Brand: IWC Schaffhausen
structured_data / Reference Number: IW371631
structured_data / Collection: Portugieser
structured_data / Case Diameter: 41mm
structured_data / Case Material: Titanium
structured_data / Water Resistance: 30m
structured_data / Crystal: Sapphire Crystal
structured_data / Movement Type: Automatic
structured_data / Caliber: 69355
structured_data / Bracelet/Strap: Rubber
structured_data / Feature: Chronograph
structured_data / Feature: Display back
structured_data / Feature: Limited Edition
structured_data / Feature: Small seconds Images are loaded from the cited external sources. Copyright remains with its holders; permission to reproduce locally has not been established.
Corrections and data limitations