Here are some technical specifications for the Omega Speedmaster Chronograph Automatic Black Dial Men’s Watch (Product Code: 324.30.38.50.01.001):
Motion Type: Automatic
Dial: Black
Case Material: Stainless Steel
Case Diameter: 38 mm
CASE THICKNESS: 13.2 mm
BAND WIDTH: 18 mm
Band Material: Stainless Steel
Band Color: Silver
Water Resistance: Standard, suitable for everyday use
Glass: Sapphire Crystal (Scratch-resistant Sapphire Glass)