There seems to be a slight clarification needed regarding the model name and color for the MK3640. While many similar Michael Kors watches feature a yellow-gold and Mother of Pearl combination, the MK3640 officially belongs to the Portia collection and is primarily finished in Rose Gold.1
Here is the breakdown of this specific model:
Michael Kors Portia — Ref. MK3640
The Portia collection is known for its “minimalist-chic” silhouette, characterized by a clean main dial and a sparkling “small seconds” sub-dial at the 6 o’clock position.2
| Feature | Specification |
| Model Number | MK3640 |
| Collection | Portia |
| Case Color | Rose Gold-Tone Stainless Steel |
| Dial Color | Rose Gold Sunray (often described as having a warm, pearlescent glow) |
| Case Size | 36.5 mm (Standard Mid-size) |
| Case Thickness | 6 mm (Ultra-slim profile) |
| Special Feature | Pavé Crystal Sub-dial at the bottom of the face |
| Strap | Rose Gold-Tone H-link Bracelet |
| Movement | Two-hand Quartz with small seconds sub-eye |
Design Highlights
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The “Floating” Crystals: Instead of crystals on the bezel or all over the dial, the MK3640 focuses its “glitz” into a single circular sub-dial. This gives the watch a modern, sophisticated look that isn’t overly busy.
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The Slim Profile: At only 6mm thick, this watch is remarkably thin. It sits flat against the wrist, making it comfortable for daily wear and easy to slide under a jacket or blouse sleeve.
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The Monochromatic Look: Because the dial and the case are both rose gold, the watch feels like a solid piece of jewelry. The sunray finish on the dial catches the light in a way that can mimic the sheen of Mother of Pearl.
Is there an “All Gold Pearl Dial” version?
If you are specifically looking for the Yellow Gold version with a true Mother of Pearl dial, you may be thinking of:
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MK3639: The Yellow Gold version of the Portia (usually with a gold sunray dial).
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MK3640 (Cinthia Variation): Occasionally, retailers mislabel the Cinthia (which has the pearl dial and crystals on the bezel) as a Portia.
























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