The Bettlach 8125 watch movement, utilized from 1999 to 2005, shares technical characteristics with the ETA 2892 movement. It is an automatic movement with a sweep second hand and includes a perpetual calendar function. The day hand is positioned at 3 o'clock and can be adjusted using the pusher at 1:30 o'clock. The date hand is located at 12 o'clock and can be modified by using the pusher at 10:30 o'clock. The month hand is positioned at 9 o'clock and can be adjusted utilizing the pusher at 8 o'clock. The moon phase is showcased through an aperture at 9 o'clock and can be set by the pusher at 4:30 o'clock. The year/leap year indication is presented with a disc at 9 o'clock and is synchronized with the month pusher. Additionally, this movement incorporates a hack feature.

The Bettlach 8125 features the following functions:

• Automatic Winding
• Date hand at 12h: set by pusher at 10:30h
• day hand at 3h: set by pusher at 1:30h
• Hack feature
• Month hand at 9h: set by pusher at 8h
• Moon phase: aperture at 9h, set by pusher at 4:30h
• Perpetual Calendar
• Sweep second
• Year/leap year: disc at 9, set with month pusher