Spec Chronomaste Full Black

Diameter 38mm 
Thickness  15.25mm
Case Material 316L Stainless Steel 
Case Finish DLC Shiny Black Color
Case back 316L Steel Silver Color Caseback
Dial Matt Black Color Dial. White Luminova Color Luminous Indexes
Glass Double domed Sapphire Glass
Case Lug Width 20mm
Water Resistance 10ATM
Band With 20x16mm
Movement Sellita SW510 BH b Self-winding - chronograph
Movement Functions Hours, minutes and small second at 9 o'clock, 60 seconds counter in the center, 30 minutes counter at 3 o'clock, Chronograph - two push-buttons
Frequency 28’800 vibrations per hour (4Hz)
Power Reserve 62 hours
Number of Jewels 27 jewels