WINDOWSTIME 41mm Open-Heart Automatic Watch

A 41mm automatic watch with an open-heart balance, complete calendar display, and black leather strap. The visible mechanical movement and calendar layout give it a technical look while the black strap keeps the overall design wearable.

Why It Stands Out

• Open-heart display with visible automatic movement
• 41mm case
• Big-date and complete calendar display
• Mineral glass
• Black leather strap

Watch Details

• Movement: Automatic mechanical
• Case diameter: 41mm
• Case thickness: 15mm
• Case material: Alloy
• Crystal: Mineral glass
• Strap: Black leather, 25mm
• Functions: Big-date and complete calendar display
• Water resistance: 30 m (3 BAR), manufacturer-rated — splashes and rain, not swimming or diving

Fit & Wear

The 41mm case is a versatile diameter, but the 15mm thickness gives the watch substantial depth on the wrist. The black leather strap balances that thickness with a cleaner dress-sport finish.

Colin's Take

The open-heart and calendar layout make this much more interesting than a basic automatic. It has enough mechanical detail to feel special without relying on an oversized case.