- Guilloche White Dial
- Self-winding Automatic Movement
- Sapphire Crystal Exhibition Back Case
- Brushed Steel Case & Bracelet
- Scratch Resistant Sapphire Crystal
- 50 Meters / 165 Feet Water-Resistant
- 39mm = 1 1/2" Case, 7" Adjustable Bracelet
- Deployment Buckle
- Luminescent Hands and Markers
Audemars Piguet Calibre 2121 Automatic movement has a power reserve of approximately 40 hours. Scratch resistant sapphire crystal. Octagonal steel crown. Skeleton case back. Octagon case shape, case size: 39 mm. Functions: date, hour, minute.