





IWC Ingenieur SL 3506
Introducing a rare gold-plated combination bracelet for the IWC Ingenieur SL.
The "Ingenieur SL" was designed by Gérald Genta, famous for designing Audemars Piguet's Royal Oak.
While models with a case diameter exceeding 40mm, known as "Jumbo," often trade for several million yen, this is a slightly smaller model.
It is an affordable and easy-to-wear SL model.
However, this particular model had a very short production run of only about 3 years, and the combination of a bezel, gold and bracelet combination, and automatic movement was rarely produced, making it a phantom model.
It is virtually impossible to find, even overseas. (There are models with a gold bezel, or quartz models with a combination bracelet.)
The original price at the time was quite high, so it seems only about 800 units were manufactured, making it a rare item today.
Most of these were SS models, and I've even heard that there were only about 10 YG combination models.
The reference is 3506, and the movement is the 3753 automatic. It boasts a luxurious specification with a 21-karat gold rotor.
Daily difference: approximately ±20 seconds
The overall condition is good.
There are some minor scratches and light dents on the case, but nothing noticeable.
The gold-colored parts (at 6 and 12 o'clock) on the combination section of the bracelet from the case to the lugs appear to be gold-plated, and while they are slightly faded, it is barely noticeable.
The overall condition is good.
As this is a very rare item, it is unlikely that the same specification will come onto the market again.
Given the small number of units, a significant increase in value can be expected in the future.
Brand: IWC
Product Name: Ingenieur SL 3506
Movement: Automatic
Material: SS, GP, K18YG
Manufacturing Year: 1990s
Warranty: 3 months
Case Diameter: Approximately 33.7mm
Wrist Size: Up to 17.5cm
Accessories: Our store's warranty card
Choose options






Things to Confirm Before Purchase
If you would like the bracelet-style wrist size adjusted, please contact us in advance. Additional links may be purchased for an extra fee, subject to availability.
As these are vintage items, care instructions vary by product. If you have any questions, please contact us individually.
This is an important purchase for you.
Please check our Frequently Asked Questions page.
Including shipping and insurance: 38,000 (JPY) Additional customs duties may apply. Please check the additional charges in advance before placing your order. Under Japanese law, crocodile exotic leather cannot be shipped. We can change it to cowhide for shipping. Please contact us for details.
ANTEの安心サポート
We carefully select and service each watch to ensure that you can use it with as much peace of mind as possible.
However, precisely because these watches have stood the test of time, they also have characteristics that differ from those of modern new watches.
We hope you will enjoy these qualities as well.
Because these vintage pieces have been treasured and passed down over the years, we carefully inspect their interiors and verify their authenticity.
We ship items domestically and internationally.
Once your order has been shipped, you will receive a tracking number.
First-time online shoppers can use our service with confidence.
In Tokyo’s Ginza district, you can view the items you’re considering in person.
Ante excels at providing consultations and guidance tailored to each customer’s individual needs. Please feel free to contact us about the situations in which you plan to use the product or any concerns you may have when making your purchase. We are happy to answer a wide range of questions, including the product’s benefits and points to note.




