FASHION
2026.08.23
【Wearable】 Manage health luxuriously! Beautiful and strong 316L stainless steel case
As I age, I have come to understand the meaning of the phrase "the body is capital." Because I lead a busy daily life, relying on the power of wearables is one option. Check out the latest case that adds a new style to a wearable without a screen.
The philosophy cultivated with the Apple Watch case has been applied to the "WHOOP 5.0"
Starting from a high-end Apple Watch case, GOLDEN CONCEPT has pursued a design that reinterprets technology and watches as "wearable products." This product expands that philosophy into the realm of pocket watch cases and introduces it to the next-generation wearable, WHOOP 5.0.
The WHOOP 5.0 is a wearable device designed specifically to record and analyze daily conditions such as sleep, recovery, and activity, without a display. Instead of checking the time like a regular watch, it is designed as a device to understand one’s physical condition by being worn continuously, from training to recovery, sleep, and everyday life.
The WHOOP, which is not a watch to tell time but a device for understanding one’s physical state, is complemented by this case, which proposes a new style option.
The WHOOP 5.0 is a wearable device designed specifically to record and analyze daily conditions such as sleep, recovery, and activity, without a display. Instead of checking the time like a regular watch, it is designed as a device to understand one’s physical condition by being worn continuously, from training to recovery, sleep, and everyday life.
The WHOOP, which is not a watch to tell time but a device for understanding one’s physical state, is complemented by this case, which proposes a new style option.
The case frame uses PVD-treated 316L stainless steel. By employing a material with excellent strength and corrosion resistance, it is suitable for a wide range of scenarios from daily wear to training. The sharp case design that surrounds the WHOOP 5.0 incorporates the refined details typical of GOLDEN CONCEPT, balancing functionality as a sports device with luxurious design.
The set includes one stainless steel case and two interchangeable straps. The straps use full fluor elastomer, which has a dense and smooth texture, different from typical silicone. The three-dimensional design featuring distinctive grooves creates a sporty impression.
The adjustable wrist size is from 15 to 21 cm, and it is resistant to water and sweat. You can wear the WHOOP 5.0 24 hours a day for training, recovery, sleep, underwater activities, and everyday life.
Product Name / Whoop Case - Sport Edition
Price / 83,600 yen
Size / Compatible wrist size: 15〜21cm
Material / Case: PVD coated 316L stainless steel, Strap: Full fluor elastomer
Compatible Models / WHOOP 5.0
Color / Onyx Black×Daytona White, Miami Pink×Aero Mint, Modena Yellow×Sunset Orange, Midnight Blue×Royal Green, Monaco Blue×Pinsa green
●PRINCIPE prive
Price / 83,600 yen
Size / Compatible wrist size: 15〜21cm
Material / Case: PVD coated 316L stainless steel, Strap: Full fluor elastomer
Compatible Models / WHOOP 5.0
Color / Onyx Black×Daytona White, Miami Pink×Aero Mint, Modena Yellow×Sunset Orange, Midnight Blue×Royal Green, Monaco Blue×Pinsa green
●PRINCIPE prive



















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