Ball Watch DD3100A-S1C-BE Engineer M Skindiver III 41.5mm Blue Luminox Selectable illumination duration (1

Selectable illumination duration (1

One-piece structure

so a screw-in crown is now used in the commemorative edition to enhance the overall security of the case

dual function unidirectional bezel

Lumibrite on hands and indexes

Ball Watch DD3100A-S1C-BE Engineer M Skindiver III 41.5mm Blue Luminox Selectable illumination duration (1Caliber: 7309 C Movement: Automatic BALL Manufacture Weight: Approx. 180g Chronometer certified: COSC Power Reserve: 80 hours, 28,800vph Case Diameter: 41. 5mm, height 13. 8 mm Water Resistance: 300m 1000ft Anti Magnetism: 4,800A m Micro Gas Tubes: 40 micro gas tubes on bezel, hour and minute hands and dial for night reading capability Construction: 5,000Gs shock resistance Case Material: Stainless steel Bezel: Uni directional rotating sapphire bezel