Questão jurídica principal
Whether the 2000 bonus was a discretionary gratification or part of salary.
Decisão extraída
The bonus had become a salary component; the bank was bound to pay it, subject only to discretion over its amount.
Fundamentação extraída
Repeated annual payments over several years, the steady increase in amount, and the bank's own offer of CHF 250,000 for 2000 allowed the employee in good faith to understand the bonus as an obligatory salary supplement despite a formal disclaimer.