Omega Speedmaster 311.32.42.30.04.001

Reference 311.32.42.30.04.001 represents the white dial variant within Omega's Speedmaster Professional Moonwatch series. This particular reference distinguishes itself from the traditional black dial configurations commonly associated with the Speedmaster Professional lineup through its contrasting white dial execution. The 42mm stainless steel case houses a manual-winding movement and features a Hesalite crystal. The white dial is complemented by a fixed tachymeter bezel, maintaining the chronograph-focused design elements of the Speedmaster Professional series. Water resistance is rated to 50 meters, suitable for everyday wear while preserving the watch's primary chronograph functionality. This reference appeals to collectors seeking the Speedmaster Professional's mechanical specifications in an alternative dial configuration. The white dial execution offers a departure from standard Moonwatch aesthetics while retaining the core technical characteristics of the series. The manual movement and Hesalite crystal preserve traditional Speedmaster Professional elements for collectors prioritizing authentic specifications over modern updates.