44mm Diameter
Origin - Swiss Made
Constant glow for up to 25 years in any light condition
Water Resistance - 200 Meters, 20 ATM, 660 feet, individually tested
Movement - Ronda 515
Battery/Battery Life - 395 / 50 Months
Case - 316L Stainless steel case
Bezel - Uni-directional rotating CARBONOX
Case Back - 316l stainless steel, screwed in
Crystal - Sapphire with anti-reflective coating
Crown - 316L Stainless steel, screw in, protected crown
Height - 12mm
Weight - 150g

More details

Model 3121.1 sports a black dial and black bezel on a Cut-to-fit strap and features water resistance to 200 meters, screw in crown and case back, sapphire crystal and, of course, the Luminox Light Technology, which guarantees constant night visibility for up to 25 years.