ETA 7753

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Baume & Mercier Riviera XXL Chrono Diver with ETA 7753
© Baume & Mercier

The ETA 7753 is an automatic chronograph movement by Valjoux/ETA based on the popular Valjoux 7750.

Overview

Very closely related to the Valjoux 7750, the ETA 7753 is a self-winding chronograph movement with 27 jewels, ball-bearing rotor, unidirectional winding, 1/8-seconds counter, 30-minutes counter, 12-hours counter, 28.800 A/h, and power reserve of about 44 hours. The differentiators between the 7753 and 7750 are the relocation of the minutes counter to 3:00 (rather than 12:00) and the date change by corrector button at 10:00. This gives the movement a classic "3:6:9" subdial layout instead of the "6:9:12" format familiar in the 7750.

Since the takeover of Valjoux by ETA the calibre Valjoux 7753 is called calibre ETA 7753.

Variants

  • Omega 3304

Description:

Automatic chronograph
Escapement: stone lever
Yoke winding system
Stop mechanism: Cam switching
Glucydur balance wheel
Nivaflex mainspring
Incabloc shock protection
Regulator system ETACHRON and regulator corrector

Functions:

Small seconds at the 9
1/8-seconds counter, 30-minutes counter, 12-hours counter
Rapid calendar advance
Hacking seconds
Complications: 12 hours counter, day: quickset

Data:

13¼ lignes
D 30.0 mm, H 7.9 mm
27 jewels
28,800 A/h
Power reserve 44 h

Production period:

Since 2002