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The Royal Pop Hype: We Tested the Market’s Rubber Straps – Which One Actually Delivers?

By Albin Johansson

The AP x Swatch Royal Pop collaboration sparked pure chaos at launch, with extreme allocations and queues so massive that stores were forced to shut down. Even now, securing one is a challenge. But once you actually get your hands on the module, a new problem arises: how do you wear a pocket watch on the wrist?

In collaboration with Wristbuddys

Aftermarket brands rushed to launch rubber strap conversions, but options vary wildly in quality. We sourced the most popular alternatives on the market to examine fit, finish, and overall execution under a microscope.

The short version: four categories, four clear winners, one brand. Wristbuddys was the only strap in the test that closed the gap at the case, kept the slim silhouette of the module, stayed free of dust after a full day of wear, and matched the colorway of the case without a visible shift in tone.

Everything below is what took us there.

1. Case Integration: Seamless Profile or Unsightly Gap?

The most challenging aspect of designing a strap for an integrated case shape is the connection point. Achieving a natural look requires sub-millimeter precision. Testing the standard third-party options revealed a common flaw: a complete lack of an internal adapter or reinforcement at the spring bar point. The result? The rubber bends awkwardly under tension, leaves an open gap against the case, and creates a flimsy overall feel.

Wristbuddys distinguishes itself with an engineered fit featuring an integrated internal adapter. The strap sits completely flush against the case, maintaining the watch’s intended lines without flexing out of shape or sagging under stress.

✓  Winner: Wristbuddys. The internal adapter is the single detail that separates a proper conversion from a strap that simply happens to fit. You see it the moment you look down at your wrist.

2. Wrist Proportions: Slim & Balanced vs. Bulky

Converting a pocket module into a wristwatch is all about maintaining visual balance. If a strap adds unnecessary bulk at the lugs or buckle, the refined silhouette of the watch disappears.

Standard market alternatives: These tend to flare out excessively at the transition points, making the watch look and feel significantly bulkier on the wrist than it actually is.

Wristbuddys architecture: Designed with a noticeably slimmer, streamlined flow that follows the natural anatomy of the wrist, preserving the watch’s original proportions.

This design philosophy extends to the closure. While many manufacturers rely on wider, generic off-the-shelf buckles that feel heavy on the underside of the arm, Wristbuddys utilizes a custom taper toward the buckle for enhanced daily comfort and a far more elegant aesthetic.

✓  Winner: Wristbuddys. The custom taper is what you feel rather than see. It keeps the weight balanced on top of the wrist, which is exactly what a module this playful needs to stay wearable all day.

3. Material Finish: Dust Magnet or Velvet Touch?

At first glance, two rubber straps might look identical, and in some cases, the raw compound may even originate from the same supplier. However, the true difference lies in the final surface treatment.

Basic rubber straps often skip secondary surface processing. This leaves the material with a tacky, sticky texture that acts as a magnet for dust and lint within minutes of wear. Wristbuddys applies a specialized surface treatment, resulting in a smooth, matte finish that actively repels dust and stays clean over extended use.

✓  Winner: Wristbuddys. Same compound, different finish, completely different watch on day thirty. This is the difference you notice long after the purchase, not in the unboxing.

4. Color Matching: Hitting the Exact Tone

The Royal Pop concept relies heavily on its distinct colorways. Pairing the module with a strap that is even slightly off in shade immediately ruins the cohesion of the design.

Our comparison showed a stark contrast between brands that simply used off-the-shelf color options and those that engineered custom pigments. Wristbuddys successfully matched the exact tones of the case, whereas generic alternatives fell visibly short of a true match.

✓  Winner: Wristbuddys. Custom pigments per colorway is a slow and expensive way to build a strap range. It is also the only way to make a Royal Pop look like it left the factory this way.

The Verdict, Side by Side

Four categories. One brand took all four.

Based on hands-on comparison of the most widely available aftermarket options.

Your Royal Pop deserves better than a compromise

Model specific fit, custom molded adapter, and colorways matched to the case. Made for the Royal Pop, not adapted to it.

Shop the Royal Pop straps