Seiko Green Open Heart Nautilus Mod Caseback: Exhibition Caseback – Showcasing

Caseback: Exhibition Caseback – Showcasing the automatic movement in motion

Crystal: Sapphire Crystal Glass – Scratch-resistant and clear for daily protection

or everyday tasks

Luminous Hands & Markers: Yes – Enhanced visibility in low-light conditions

If the crown is left unscrewed or not secured tightly

Seiko Green Open Heart Nautilus Mod Caseback: Exhibition Caseback – ShowcasingDiameter: 40mm Balanced size that complements a wide range of wrist profiles Movement: Seiko NH38 Automatic Proven, reliable movement with smooth, sweeping seconds Case Material: 316L Stainless Steel High grade steel with brushed and polished accents Crystal: Sapphire Crystal Glass Scratch resistant for clear, long lasting visibility Water Resistance: 5 ATM Handles splashes and rain when crown is properly secured (not suitable for swimming) Luminous