1988 Raymond Weil Tango 5563 Diver

Date

A feature that displays the current day of the month, typically in a small window on the dial, commonly placed at the 3 o'clock or 6 o'clock position.

100 meters

A sub-dive watch resistant to water up to 100 meters, making it suitable for swimming, snorkeling, and other light water activities but not high-impact diving.

Uni-directional rotating bezel

A bezel that rotates in only one direction, typically used in dive watches to avoid accidental adjustments. It is commonly used to track elapsed time during a dive.

Screw-in crown

A self-locking crown that screws into the watch case to ensure water-tightness, often used in diving watches for enhanced water resistance.