Sea-Gull - Heritage Series Tourbillon

Movement : 

Movement: ST8230
Number of Jewels: 21
Movement Frequency: 21600

Case & Strap: 

Case Material: 316L Stainless Steel
Crystal Material: Synthetic Sapphire
Case Thickness: Approx. 11mm
Case Diameter: Approx. 42mm
Case Shape: Round
Water resistant: 30 M
Strap Material: Genuine Alligator leather
Clasp: Double deployment buckle