1 / 10Specifications
A concise reference view of the case, dial, bracelet and movement details buyers compare first.
Case
| Diameter | 41 mm |
|---|---|
| Thickness | 13 mm |
| Lug width | 20 mm |
| Material | Stainless steel |
| Caseback | See-Through |
| Crystal | Sapphire |
| Water resistance | 3 bar / 30 m |
| Water Resistance Category | Splash |
Reference details
| Gender | Men's |
|---|---|
| Production status | Active |
| Origin | Switzerland |
| Warranty | 8 years |
| Size category | Large |
| Component count | 205 |
Dial and bracelet
| Dial | Blue |
|---|---|
| Display | Analog |
| Bracelet | Alligator leather strap |
| Bracelet material | Black alligator leather strap |
| Strap material | Alligator Leather |
Movement
| Calibre | IWC Calibre 69355 |
|---|---|
| Calibre family | 69xxx |
| Movement | automatic |
| Power reserve | 46 hours |
| Frequency | 28,800 vph |
| Jewels | 27 jewels |
| Stop Seconds | Yes |
| In House Movement | Yes |
Additional details
| Buckle Width Mm | 18 |
|---|
Recent price movement
Tracking 7 daily market snapshots since July 2026. The solid line shows the median delivered estimate and the dashed line tracks the lowest available offer.
About this reference
IW371606 gives the Portugieser Chronograph a vivid blue-dialled identity while preserving the collection's open, finely proportioned layout. Its 41 mm stainless-steel case is paired with a black alligator-leather strap, creating a sharp contrast that keeps the watch equally at home in formal and more relaxed settings. A see-through back adds a second layer of interest beneath the clean chronograph display.
IWC calibre 69355 powers the timing functions through an in-house automatic movement with column-wheel control and small seconds. Its automatic pawl winding system supports 46 hours of reserve, while 27 jewels and 205 components fill a 30 mm architecture operating at 4 Hz. The 13 mm case retains a balanced profile, giving the chronograph enough presence without overwhelming the 41 mm Portugieser format.











