Omega Seamaster Planet Ocean #232.30.42.21.01.002 (Men Watch). Dial Color: Black. Display Type: Analog. Item Shape: Round. Band Material: Stainless Steel. BandLength: Men Standard. Case Size Diameter: 42 millimetres. Case Material: Stainless Steel. Clasp Type: Fold Over Clasp with Push Button. Bezel Function: Uni-directional. Crystal: Anti-Reflective Sapphire. Water Resistant Depth: 600 meters. Movement Type: Automatic Self-wind - Caliber: Omega 8500 Self-winding movement with Co-Axial Escapement for greater precision, stability and durability. Free sprung-balance, 2 barrels mounted in series, automatic winding in both directions to reduce winding time. Bridges and the oscillating mass are decorated with exclusive Geneva waves in arabesque. Calendar Type: Date. Helium escape valve. Model Number: 232.30.42.21.01.002 232.30.42.21.01.00 232.30.42.21.01.0 232.30.42.21.01. 23230422101002.