Nearly 30 years after staging a first nationwide strike for equal pay, women across Switzerland say they are preparing fresh action to push for wage parity next week.
On June 14, 1991 - 10 years after equality between the sexes was enshrined in the Swiss constitution - half a million women walked out of their workplaces or homes to protest persistent inequalities.
Three decades on, however, unions and rights groups say things have barely improved.
They are calling on Swiss women to join a fresh strike, again on June 14, to demand "more time, more money, more respect".
Women in Switzerland on average still make 20 percent less than men.
And for men and women with equal qualifications, the wage gap remains nearly eight percent, according to the national statistics office.
"Even if you take into account all of the regular excuses and you only compare women and men in the exact same position with the same professional experience, the fact remains that a woman in Switzerland is cheated out of 300,000 Swiss francs ($313,000, 266,000 euros) over the course of her career, just because she is a woman," Switzerland's largest union UNIA said in a statement last year.
Strikers will also be demanding zero tolerance for violence against women and more respect and better pay for women's work, including through the introduction of a minimum national salary.
The idea of another nationwide women's strike was born out of frustration at a bid to change the law to impose more oversight over salary distribution, which passed through the Swiss parliament last year The final text only applied to companies with more than 100 employees - affecting fewer than one percent of employers - and failed to include sanctions for those that allow persistent gender pay gaps.
Organisers have called upon women to snub their jobs, and also housework, for the entire day to help raise awareness about the vital contribution women make across society.
"Really, the objective is to block the country with a feminist strike, a women's strike," activist Marie Metrailler told AFP.
For those women unable to take a full day, the organisers urge them to at least pack their things and go by 3:24 pm - in recognition of the male-female pay disparity.
"After that, women work for free," said Anne Fritz, the main organiser of the strike and a representative of USS, an umbrella organisation that groups 16 Swiss unions.
Gaining recognition of women's rights has been a drawn-out process in Switzerland.
It was one of the last countries in Europe to grant women the right to vote, in 1971 - and in the conservative Appenzell region women only won that right in 1991.
And while Switzerland did enshrine gender equality into its constitution in 1981, it took another 15 years before the law took effect.
"In 1991, we determined that... nothing was moving. So we went on strike," Geneva author Huguette Junod told AFP.
Around 500,000 women - a high number in a country that at the time counted fewer than 3.5 million female inhabitants - marched and organised giant picnics in the streets. Some women hung brooms from their balconies.
The large turnout was all the more remarkable given that work stoppages have been extremely rare in Switzerland since employers and unions signed the "Peace at Work" convention in 1937. It states that differences should be worked out through negotiation rather than strikes.
Junod, 76, recalls that many women were blocked from participating in 1991.
But, she said, "those who were not permitted to strike wore a fuchsia-coloured armband ... and took a longer break". Organisers are bracing for a repeat of that situation, for while the strike has some support, the employers' organisation flatly opposes it.
"This strike is illegal," Marco Taddei, one of the organisation's representatives, told AFP.