Omega Speedmaster 3556.50.00

The Speedmaster Broad Arrow reference 3556.50.00 represents Omega's automatic interpretation within the Broad Arrow series. This reference distinguishes itself from manual-wind Speedmaster variants through its self-winding movement configuration, while maintaining the collection's characteristic nomenclature. The 42mm stainless steel case houses an automatic movement beneath a sapphire crystal. The black dial features a fixed tachymeter bezel, with water resistance rated to 50 meters. The stainless steel construction provides durability within the mid-size case diameter range. This reference appeals to collectors seeking automatic movement functionality within the Speedmaster Broad Arrow lineup. The combination of 42mm sizing, sapphire crystal, and automatic movement positions this reference for those preferring contemporary materials and self-winding convenience. The black dial configuration offers a versatile aesthetic suitable for varied collecting approaches within the Broad Arrow series.