About the technology: Philip Stein, known as the "Feel Good Watch" by devoted customers who have felt positive effects from Natural Frequency Technology for years, has clinical study results that show Philip Stein wearers experience improved sleep and reduced stress. Size 1 head fits 18mm straps. 23-karat yellow gold-plated and solid stainless steel case. White dial with Roman numeral markers; subdial with Arabic numerals measures seconds. Mineral crystal casing. Dual quartz movements. Water-resistant to 3 ATM. Imported.