Omega Speedmaster Day-Date (Ref. 3521.30)

Omega Speedmaster Day-Date features a white dial, chronograph, 24 hour sub-dial, Day-date and Tachymeter complications. 

OMEGA Speedmaster Day-Date Ref. 3521.30.00 – A Unique Take on the Classic Chronograph

While the Speedmaster Professional series remains the most recognizable and celebrated chronograph in OMEGA’s lineup, not all Speedmasters are Moonwatches. Over the years, OMEGA has expanded the Speedmaster family with a variety of models, ranging from heritage-inspired designs to moon phases, digital iterations, and even gemstone-adorned editions.

One particularly distinctive departure from the traditional Professional line is the Speedmaster Day-Date, a fascinating series that gained popularity around the turn of the century. This example, this Reference 3521.30.00, exemplifies the model’s unique approach to the iconic chronograph, blending practical functionality with classic Speedmaster design cues.

At 39mm in diameter and 14mm thick, the stainless steel case retains the familiar Speedmaster silhouette, featuring twisted lugs, an aluminum tachymetric bezel, and prominent pump pushers flanking a deeply toothed crown. While the case structure remains true to the collection’s sporty DNA, it’s the white dial that sets this model apart. The dial layout showcases a triple calendar function, a vertical chronograph subdial arrangement, and a day/night indicator, all while maintaining signature Speedmaster details such as the sharp handset and the classic script at three o’clock. The design masterfully merges vintage Speedmaster influences with modern styling.

Under the hood, this pre-Co-Axial Speedmaster is powered by the OMEGA Caliber 1151, a robust automatic movement derived from the ETA 7751, itself an evolution of the legendary Valjoux 7750. With a 44-hour power reserve, this movement is built for reliability and performance, perfectly complementing the watch’s versatile design. Completing the package is a five-link stainless steel bracelet, alternating between brushed and polished finishes, with end links that integrate seamlessly into the case.

The Speedmaster Day-Date stands as a compelling alternative within the Speedmaster lineage, offering a distinct blend of heritage, innovation, and everyday practicality—ideal for collectors and enthusiasts seeking something beyond the traditional Moonwatch.

Reference: 3521.30.00
Production date: 2007
Case: Stainless steel
Case size: 39mm
Dial: Silvered with luminous hour markers and hands.
Water resistance: 5 bar (50 meters / 167 feet)
Movement: Automatic
Caliber #: 1150/1151
Bracelet: Stainless steel (fits up to an 8" wrist)
Watch comes as a complete set with box, original Omega warranty card and paperwork.