This is our first mechanical watch, which comes with a open heart and two easy exchangeable nylon straps looping through the back. They can be changed in seconds and stay in place once set right.

• Movement: Japanese Miyota 90S5 automatic movement
• Material: all metal parts are surgical 316L stainless steel
• Finish: all metal parts are brushed
• Coating: case is 0.8µm PVD coated
• Case: ∅43mm x 11.5mm high, 5 ATM (50m) water resistant
• Crystal: double curved, sapphire crystal
• with anti-reflective coating
• Bracelet: Nylon with nubuk lining (exchangeable) 
• Warranty: 2 years limited warranty