IWC Portofino Chronograph MecaQuartz Stainless Steel / Yellow Gold / White / Bracelet IW3731-04
The IWC Portofino Chronograph IW3731-04 has a stainless steel & yellow gold case with a diameter of 35.00mm, which holds the 'MecaQuartz' caliber 631 chronograph movement. The dial is White. This watch was available from ca. 1988 until 1998.
| Reference | IW3731-04 |
|---|---|
| Collection | Portofino |
| Case diameter | 35 mm |
| Case material | Yellow Gold, Stainless Steel |
| Case shape | Round |
| Case back | Closed |
| Lug width | 18.00 mm mm |
| Movement | Jaeger-LeCoultre caliber 631Hours |
| Water resistance | 30 m |
| Dial colour | White |
| Indexes | Stick / Dot |
| Hands | Stick |
| Crystal | Sapphire |
| Year introduced | 1988 |
| Limited edition | Yes |
This is a reference-catalog entry for the IWC Portofino Chronograph MecaQuartz Stainless Steel / Yellow Gold / White / Bracelet IW3731-04. WatchFlow's Watch Library lets a dealer attach a reference like this to a piece of stock in one click, so the brand, reference and specs are filled in automatically instead of retyped — then that record drives listings, invoices and reports. See how it fits the wider watch inventory management workflow.
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