42mm Automatic Sports Watch – Miyota 8215, Sapphire Crystal & 10 ATM

⚙️ Japanese Automatic Movement Meets Sport-Inspired Design

Built for watch enthusiasts who appreciate mechanical engineering and bold sporting aesthetics, this 42mm automatic watch combines a Japanese Miyota 8215 automatic movement, sapphire crystal and 100-meter water resistance in a distinctive everyday timepiece.

Its rotating-style sports bezel, highly legible dial and contrasting hybrid strap create a dynamic look inspired by classic dive watches, while the automatic movement eliminates the need for a battery.

🇯🇵 Miyota 8215 Automatic Movement

At the heart of the watch is the renowned Miyota 8215 automatic mechanical movement, manufactured in Japan.

Powered by the motion of your wrist, the movement provides traditional mechanical timekeeping without a battery and can also be manually wound.

💎 Sapphire Crystal

The dial is protected by synthetic sapphire crystal, offering excellent scratch resistance and long-term clarity.

Combined with the stainless steel case, it gives the watch a durable construction designed for regular wear.

🌙 Luminous Dial

Luminous hands and hour markers provide improved visibility in darker environments, while the large contrasting indexes make the time easy to read at a glance.

💧 10 ATM / 100 m Water Resistance

Rated to 10 ATM / 100 meters (328 ft), the watch offers substantial water resistance for everyday use and recreational water activities.

I would avoid claiming professional diving capability unless an appropriate diving certification is confirmed.

⌚ Hybrid Rubber & Nylon Strap

One detail worth correcting from AliExpress: the technical image specifies rubber and nylon, rather than simply silicone.

The combination gives the strap a sporty textile appearance on the outside while maintaining the flexibility and water resistance of rubber.

📏 Specifications

• Movement: Miyota 8215 automatic mechanical
• Movement origin: Japan
• Winding: Automatic + manual winding
• Case material: Stainless steel
• Case diameter: 42 mm / 1.65 in
• Case thickness: 16 mm / 0.63 in
• Crystal: Synthetic sapphire
• Strap: Rubber & nylon
• Strap width: 20 mm / 0.79 in
• Maximum wrist circumference: 220 mm / 8.66 in
• Weight: 112 g / 3.95 oz
• Clasp: Pin buckle
• Date display: Yes
• Luminous hands & markers: Yes
• Water resistance: 10 ATM / 100 m / 328 ft
• Battery: Not required
• Display: Analog
• Case shape: Round