Automatic Open Heart Watch – Japan Movement, Sapphire Crystal & 5 ATM

⌚ A refined automatic watch combining Japanese mechanical engineering, an open-heart dial and classic leather styling.

Designed for customers who appreciate visible mechanics without the full skeleton-watch aesthetic, this automatic timepiece features a sophisticated open-heart window, Roman numeral-inspired markers and an elegant multi-level dial.

Its combination of a Japanese automatic movement, sapphire crystal, stainless steel case and leather strap gives it a premium specification suited to both business and formal wear.

Available in Rose Blue, Rose White, Rose Black, Silver White and Silver Black.

⚙️ Japanese Automatic Mechanical Movement

At the heart of the watch is an automatic self-winding mechanical movement of Japanese origin.

The movement is powered by the natural motion of the wrist, eliminating the need for a conventional battery while delivering the mechanical character watch enthusiasts appreciate.

💎 Open-Heart Mechanical Dial

One of the most distinctive elements is the open-heart window positioned on the lower portion of the dial.

It exposes part of the mechanical movement in operation, adding depth and motion to the watch without overwhelming the overall elegant design.

The asymmetric dial architecture combines the open-heart display with additional indicators for a sophisticated mechanical appearance.

🔷 Sapphire Crystal

The dial is protected by sapphire crystal, valued for its excellent resistance to everyday scratches and its premium clarity.

This is an important advantage over standard mineral or Hardlex-style crystals, especially on a watch intended for regular wear.

✨ Luminous Hands

Luminous elements on the hands improve readability in low-light conditions after exposure to light.

The luminous treatment also provides a subtle visual contrast against the detailed dial.

🛡️ Stainless Steel Case

The polished stainless steel case gives the watch a refined finish while providing a durable structure around the mechanical movement.

Its relatively slim 11 mm (0.43 in) profile helps maintain an elegant silhouette despite the complexity of the dial.

🐊 Classic Leather Strap

A textured leather strap complements the traditional mechanical design and provides a more formal appearance than a steel bracelet.

The pin buckle allows straightforward adjustment and secure everyday wear.

💧 5 ATM / 50M Water Resistance

The watch is rated to 5 ATM / 50 m (164 ft) water resistance, providing protection against everyday splashes and incidental water exposure.

For longevity, avoid operating the crown or controls while the watch is wet and avoid hot water, steam and diving.

🎨 Five Elegant Variants

🔵 Rose Blue – rose-gold-tone case with deep blue dial and blue leather strap
🤍 Rose White – rose-gold-tone case with light dial
⚫ Rose Black – rose-gold-tone case with black dial
⚪ Silver White – silver-tone case with white dial
🖤 Silver Black – silver-tone case with black dial

Recommended featured variant: Rose Blue. The blue dial, matching blue leather strap and rose-gold-tone case create the strongest contrast and give the product a distinctive premium appearance.

📏 Product Specifications

Movement: Automatic self-winding mechanical
Movement Origin: Japan
Case Material: Stainless steel
Case Shape: Round
Case Thickness: 11 mm (0.43 in)
Dial Diameter: 40–44 mm (1.57–1.73 in)
Crystal: Sapphire crystal
Strap Material: Leather
Strap Length: 24 cm (9.45 in)
Strap Width: 20–24 mm (0.79–0.94 in)
Clasp: Pin buckle
Display: Analog
Dial Style: Open heart / partial skeleton
Markers: Roman numeral-inspired
Luminous: Yes
Shock Resistant: Yes
Water Resistance: 5 ATM / 50 m (164 ft)
Weight: 92 g (3.2 oz)
Style: Luxury / Business / Dress
Variants: Rose Blue, Rose White, Rose Black, Silver White, Silver Black

🎁 A Mechanical Watch with Strong Gift Appeal

The combination of visible mechanical components, Japanese automatic movement, sapphire crystal and leather strap makes this model particularly suitable as a birthday, anniversary, graduation or professional gift.

At 92 g (3.2 oz), it also maintains a relatively manageable weight for a mechanical watch of this visual presence.

⭐ Why You'll Love It

⚙️ Japanese automatic mechanical movement
💎 Scratch-resistant sapphire crystal
❤️ Open-heart mechanical display
✨ Luminous hands
🛡️ Stainless steel case
🐊 Elegant leather strap
💧 5 ATM / 50 m (164 ft) water resistance
🎨 Five premium color combinations