3194.50.00Ref

The Speedmaster Jubilee Chronometer, introduced in 1992 as a limited edition of 250 pieces, honours the 50th anniversary of calibre 321 (27 CHRO C12). It features a yellow gold case and either a matching bracelet (ref. 3194.50.00) or an alligator strap (ref. 3694.50.00), with the serial number engraved on the caseback bevel. The black dial has applied hour markers and encircled subdials, and it was among the first Speedmaster Professional models with a sapphire crystal; limited to 250.