A bold and historically significant timepiece, this 18k yellow gold Patek Philippe Beta 21, Ref. 3597/2, from 1972, is truly a collector's gem. This particular example features an 18k yellow gold perforated "Swiss cheese" bracelet that is detachable - a unique feature, as most Beta 21 watches were produced with an integrated bracelet or with a leather strap.

Weighing a solid 180g, this piece makes a strong statement on the wrist. Its case boasts an impressive 43mm width with a distinctive TV-shaped design and a screw-down caseback. The two-tone gilt dial is detailed with raised yellow gold indices and a date window at 3 o'clock.

At the heart of this masterpiece lies the iconic Beta 21 quartz movement, of which only approximately 6,000 were ever made.

Total length: Approx. 19cm, noting the clasp has been professionally extended.