Frederique Constant · Slim Line

Strap for Slimline Mini Stainless Steel / Silver / Bracelet

Takes 12 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width12 mm
Case diameter25 mm
ReferenceFC-200WHDS6B
FamilySlim Line
MovementFrederique Constant caliber FC-200 Hours, Minutes
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Slim Line FC-200WHDS6B, seen from the bench

The Frederique Constant Slim Line FC-200WHDS6B is equipped with the FC-200 caliber displaying hours and minutes. The case features 12mm lug width for the strap. The movement provides the essential time reading functions in a slim format.

Frequently asked questions

What is the lug width of the Frederique Constant Slim Line FC-200WHDS6B?

The lug width of the Frederique Constant Slim Line FC-200WHDS6B is 12 millimetres. This dimension is the standard for ultra-slim and women's watches, ensuring harmonious proportions on the 25mm case diameter. To verify, position a digital caliper inside the strap attachment and measure the net horizontal distance between the lugs.

Which strap is most suitable for the Frederique Constant Slim Line FC-200WHDS6B?

For the FC-200WHDS6B, we recommend genuine alligator for formal elegance, vegetable-tanned calfskin for everyday craftsmanship, or NATO for sporty practicality. On a white dial, light brown alligator or polished black creates maximum aesthetic harmony. The choice depends on intended use: formal work, daily wear, or casual activities.

How do I change the strap on my Frederique Constant Slim Line?

Strap replacement requires a dedicated spring bar tool to extract the locking pin from the lugs. Position the tool tip in the small hole on the spring, apply controlled pressure to release the pin, then remove the old strap. Install the new one by aligning the pin in the seats and ensuring it clicks into position. A specialised atelier like Casati Milano performs this operation in minutes.

Can I use aftermarket 12mm straps on my Frederique Constant?

Yes, any strap with a 12mm lug width is compatible with the FC-200WHDS6B, provided it respects precise internal dimensions. Avoid undersized straps (11mm) that would create visible lateral gaps, or oversized ones that would be cumbersome. At milanostraps.it you will find a complete selection of handcrafted leather, rubber and fabric straps, all tested for this lug width.

How long does a leather strap last on a watch like the Slim Line?

A quality leather strap (alligator or naturally tanned vegetable calfskin) typically lasts 3-5 years with daily wear, developing characteristic patina over time. Longevity depends on exposure to moisture, sweat and frequency of wear. Straps made by Casati Milano include an 18-month warranty and can be refurbished or replaced through the atelier's targeted maintenance services.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only