Ball DM2280A-S3C-BRR Engineer Master II Diver Chronometer 42mm Brown Luminox Navy Seal Trident-3507 Water resistance (m/ft/atm): 30 /

Water resistance (m/ft/atm): 30 / 100 / 3

dual curved sapphire crystal with anti-reflective coating on the inner surface

This is made possible through Bluetooth® connectivity

The leather straps come with Formex's carbon composite clasp with a patented 7mm fine-adjustment

Case Bezel Uni-directional rotating

Ball DM2280A-S3C-BRR Engineer Master II Diver Chronometer 42mm Brown Luminox Navy Seal Trident-3507 Water resistance (m/ft/atm): 30 /Movement: Automatic caliber BALL RR1101 C Limited Edition: 1000 Weight: Approx. 190g Chronometer Certified: COSC Case Size: 42mm, height 13. 5 mm Water Resistance: 300m 1,000ft Anti Magnetism: 1,000 Gauss (80,000A m) Micro Gas Tubes: 36 micro gas tubes on hour, minute and second hands, dial and inner bezel for night reading capability Case Material: Stainless steel Bezel: Bi directional rotating sapphire inner bezel with micro gas tubes for night