Grail Watch Reference

A Reference Library for Watches from Grail Watch

  • Movement Database
  • Grail Watch Blog
  • The Watch Files Podcast
  • Reference Documents
    • 1979 Citizen Movement Table
    • Seiko Blue Book Automatic Movement Chronology
    • Seiko Laurel Brochure
    • Seiko List of Basic and Derivative Calibres
  • About Grail Watch
  • Email
  • Facebook
  • Instagram
  • Twitter

Powered by Genesis

You are here: Home / Movements / Valjoux 7730

Valjoux 7730

Last Update: June 24, 2019

Brand:Valjoux
Family:
Venus 188 Family
Height:6.0 mm
Jewels:17
Reserve:45 hours
Frequency:18,000 A/h
Winding:Hand winding
Diameter:31.0 mm (14 ligne)
  Complications:2-Button, Cam Switching Chronograph, Chronograph
Hands:30 Minute Chronograph Hand at 3:00, 45 Minute Chronograph Hand at 3:00, Central 60 Second Chronograph Hand, Central Hour Hand, Central Minute Hand, Small Seconds Hand at 9:00
Distinguishing Technical Characteristics
Hand-Winding
Clockwise Balance Cock
Balance, Balance at 1:30
Production: 1966 – 1973
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s

Valjoux Cal. 7730 is a cam-switching chronograph movement based on the Venus 188. After Valjoux acquired Venus in 1966, the company took the affordable Venus Cal. 188 architecture and launched a new Valjoux-branded movement. The only notable change was the use of a mobile stud carrier. Cal. 7730 was produced from 1966 through 1973 with a reported 175,000 examples produced. It was replaced by the redesigned Valjoux 7733 starting in 1969.

Cal. 7731 is essentially the same movement with a new balance cock.

Images are taken from official publications and are used here for commentary and educational purposes. Copyright is held by the original owner as noted.

Ranfft Pink Pages

Related Posts

Chronoswiss C.125

ETA 7754

Valjoux 72c VZHC

Valjoux 88 VZHCL

ETA 2894-2

ETA 7751