• Reference: 136668LB
• Model case: Oyster, 44 mm, yellow gold
• Waterproofing: Waterproof to 3,900 metres / 12,800 feet, helium escape valve
• Bezel: Unidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in blue ceramic, numerals and graduations coated in gold
• Dial: Blue

• Strap: Oyster, three-piece solid links
• Movement: Perpetual, mechanical, self-winding
• Calibre: 3235, Manufacture Rolex
• Power reserve: Approximately 70 hours
• Certification: Superlative Chronometer (COSC Rolex certification after casing)