The Speedmaster story extends far beyond the Moonwatch, and the 1990s became an especially interesting period when Omega explored a more complicated and everyday oriented side of its legendary chronograph. Ref. 3520.50.00, often known among collectors as the Speedmaster Mk40 or TDate, belongs to that chapter beautifully combining unmistakable Speedmaster DNA with an automatic movement and a remarkably practical triple calendar complication. What makes this reference particularly compelling is the amount of information Omega managed to integrate into its black dial without losing the purposeful character of the Speedmaster. Alongside the chronograph registers sits a complete calendar displaying the day, month, and date through its distinctive pointer date scale around the dial. Combined with the tachymeter bezel and layered dial architecture, the result is one of the most visually complex yet characterful Speedmasters of the neo vintage era. Its appeal today comes not from numbered scarcity, but from being a less conventional chapter of the Speedmaster story especially when preserved as a complete fullset example. Measuring 39mm without crown and 41mm with crown, with a compact 44.5mm lug to lug and 14mm thickness, this Ref. 3520.50.00 offers substantial functionality in proportions that remain remarkably wearable today. Inside beats the automatic Calibre 1151, bringing together chronograph and triple calendar functions in one mechanical package. Offered here as a fullset, this 1999 example stands as a compelling neo vintage Speedmaster for collectors who appreciate the family beyond the familiar Moonwatch and value complication, completeness, and unmistakable late 1990s character.
