Speedmaster Day-Date (Black)

“Day-Date 39”

The Speedmaster Day-Date ref. 3520.50.00 is the 39 mm automatic Speedmaster of the 1990s–2000s with a black dial, a triple-calendar day/date/month layout and a tachymeter bezel. It is powered by the automatic Calibre 1151 (a Valjoux 7750 base with day-date module), with about a 44-hour power…

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