The Ball Engineer Master II Diver Chronometer 42mm Limited watch model # DM2280A-S1C-BE features: stainless steel case, brushed & polished stainless steel strap with a deployant clasp / buckle. It has a blue dial, bi-directional bezel. The case size is 42mm. This automatic watch is powered by the caliber BALL RR1101-C is a 28800 VPH movement and has a power reserve of 42 hours . The Ball DM2280A-S1C-BE uses a sapphire crystal and has a water resistance of 300m/1000ft.