The bonus day this February has one traditional consequence: it is considered the day when women can turn the tables on men and ask for their hand in marriage. The origins are obscure – an Irish legend has a fifth-century nun asking St. Patrick’s permission for women to propose – yet, however arcane the custom may seem in the modern world, it has become an enduring tradition. A survey by Britain’s Nationwide Building Society this year found one in 20 women were planning on popping the question on 29 February. All this begs a further question – when he inevitably says yes, what makes the perfect engagement gift? Allow Sotheby’s to make a proposal of cufflinks, accessories and timepieces from our upcoming sales.