Beverly Hills Polo Club | Navy Blue Diamond-Guilloche Open-Heart Automatic Silver Men's Watch on Steel Bracelet — BP3915X.390 — 41mm

Mechanical soul, California precision. The Beverly Hills Polo Club BP3915X.390 is a genuine Japanese automatic sport watch — no battery, no compromise — delivering a deep navy blue diamond-guilloche dial with open-heart movement display, all housed in a beautifully proportioned 41mm brushed and polished silver stainless steel case riding on a solid three-link oyster bracelet. This is a watch built for the man who demands both mechanical credibility and visual drama from the same wrist.

The deep navy blue dial is architecturally extraordinary — a full-surface diamond pyramid guilloche pattern covers every square millimetre of the dial in a continuous repeating raised pyramid texture, each facet catching the light from a different angle as the wrist moves, creating a constantly shifting, living surface of deep blue and midnight that no flat dial can replicate. The pyramids are precisely machined with military regularity — row upon row of four-sided diamond peaks running edge to edge across the entire dial canvas. Applied polished silver baton indices radiate outward at each hour position — long, broad, flat-topped bars that sit with solid authority against the textured blue surface. Matching polished silver broad sword hands sweep with the continuous, living motion that only an automatic movement can produce. The iconic Beverly Hills Polo Club polo player and rider logo sits at the upper centre in white — "Beverly Hills / Polo Club" inscribed in crisp white lettering below. "Japan" is inscribed at the lower left and "Automatic" at the lower right of the dial — provenance and movement type confirmed with pride.

The open-heart window at 6 o'clock is the mechanical centrepiece — a large, architecturally framed aperture cut directly into the diamond-guilloche dial surface, revealing the full movement assembly below in extraordinary detail. The balance wheel beats visibly with every tick, a polished gold-toned escape wheel and ruby red jewel pivot catching the light in alternating flashes of gold and crimson. A large yellow gold barrel gear dominates the upper section of the aperture. The entire movement assembly — bridges, gear train, and escapement — is visible in rich mechanical colour against the deep navy background, creating a miniature theatre of engineering that never grows old to watch. A fine seconds scale ring frames the upper half of the open-heart aperture, with a dedicated small seconds sub-hand sweeping the scale with precise, measured motion.

The polished and brushed silver stainless steel case is impeccably proportioned — a smooth, rounded profile with broad, integrated oyster-style lugs that flow naturally and seamlessly from the case flanks into the bracelet end-links without visible gap or step. The flat polished bezel frames the navy dial in a clean, uninterrupted silver ring. The large knurled silver crown at 3 o'clock is solidly built and satisfying to operate — textured, broad, and purposeful. The exhibition caseback reveals the full automatic rotor assembly through a mineral crystal window, the oscillating rotor spinning freely with every movement of the wrist, confirmed: "Japan Automatic — Beverly Hills Polo Club."

The solid three-link oyster stainless steel bracelet is wide, heavy, and impeccably finished — alternating brushed centre links and polished outer links running the full length of the 220mm bracelet, secured with a fold-over butterfly deployment clasp with polished Beverly Hills Polo Club logo engraving. The bracelet tapers elegantly from the broad integrated end-links to a refined clasp, with micro-adjustment holes on the clasp for perfect wrist fit between 160mm and 220mm.

Rated to 50 metres / 5 ATM — splash and rain resistant.

Presented in the signature Beverly Hills Polo Club navy blue luxury gift box with gold polo player logo.

Mechanical. Textured. Unmistakably California.

• Frame shape: Round (Sport Integrated)
• Frame color: Silver
• Frame material: Stainless steel (Brushed & Polished)
• Lug design: Integrated oyster-style — seamless bracelet flow
• Frame diameter: 41 mm
• Glass type: Sapphire crystal
• Dial color: Deep Navy Blue — full-surface diamond pyramid guilloch
• Open-heart: Full movement display at 6 o'clock with small seconds sub-dial
• Movement: Japanese Automatic (self-winding — no battery)
• Crown: Large knurled silver — screw-fit profile
• Strap material: Stainless steel / Three-link oyster bracelet
• Strap color: Silver
• Bracelet length: 220 mm (fits 160–220mm wrist)
• Strap closure: Fold-over Butterfly Deployment Clasp (BHPC logo engraved)
• Water resistance: 5 ATM / 50 meters (splash resistant — not for swimming)
• Origin: Beverly Hills, California / Japan movement
• Warranty: 2 Years (movement: 1 year)