Grail Watch Reference

A Reference Library for Watches from Grail Watch

  • Movement Database
  • Grail Watch Blog
  • The Watch Files Podcast
  • Reference Documents
  • About Grail Watch
  • Email
  • Instagram
  • LinkedIn
  • Twitter

Powered by Genesis

You are here: Home / Movements / Valjoux 237

Valjoux 237

Last Update: February 27, 2020

Brand:Valjoux
Family:
Valjoux 23/72 Family
Height:6.90 mm
Jewels:
Reserve: hours
Frequency:21,600 A/h
Winding:Hand winding
Diameter:29.50 mm (13 ligne)
  Complications:2-Button, 9-Column Chronograph, Chronograph, Column Wheel Chronograph, Date, Flyback Chronograph, Quick Date Correction
Hands:30 Minute Chronograph Hand at 3:00, Central 60 Second Chronograph Hand, Central Hour Hand, Central Minute Hand, Date Window at 6:00, Small Seconds Hand at 9:00
Distinguishing Technical Characteristics
Hand-Winding
Clockwise Balance Cock
9-Column Chronograph
Balance
Balance at 12:00
Column Wheel
Column Wheel at 7:30
Production: 1971 – 1974
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s

Cal. 237 is a flyback chronograph movement with date produced by Valjoux between 1971 and 1974. It is extremely rare, with just 300 said to be produced in that time. It is part of the Valjoux 72 family of movements and can be thought of as an enhanced version of Valjoux Cal. 23 “VZ”. It is closely related to Valjoux Cal. 235.

Valjoux 237 Functions

There is conflicting information about the functions of Cal. 237. It would appear to be similar to Cal. 234 and 235, with a 30 minute counter at 3:00 and small seconds at 9:00 plus a date window at 6:00. Wakmann, at least, produced a watch with this configuration.

However Le Phare and Lorenz, at least, produced regatta timers with Cal. 237 that have a regatta timer window at 3:00 and date at 9:00 with no running seconds.

Valjoux 23/72 Family Movements

The Valjoux Cal. 23/72 family was primarily made up of eight movements, with all others being variations on these. Many components are shared between most or all of these movements, with the main variations happening together over the long production of the series.

  • Cal. 23 VZ – Basic movement with no hour counter
  • Cal. 72 VZH – Basic movement with hour counter
  • Cal. 72c VZHC – Cal. 72 with triple calendar
  • Cal. 88 VZHCL – Cal. 72c with moon phase
  • Cal. 78 VZSC – Non-chronograph triple calendar
  • Cal. 90 VZSCL – Cal. 78 with moon phase
  • Cal. 69 DX – Compact 10.5 ligne chronograph
  • Cal. 89 DXC – Compact 10.5 ligne triple calendar
Complications18,000 A/h
No Chrono
18,000 A/h
No Hours
18,000 A/h
Hour Counter
21,600 A/h
No Hours
21,600 A/h
Hour Counter
Base23 VZ
69 DX
72 VZH
722
236726
727
Flyback230720235725
Date232234
Triple Date78 VZSC23C72c VZHC
723
730
Flyback and Date237
24 Hour Hand724729
Calendar and Moon Phase89 DXC
90 VZSCL
88 VZHCL886
Tide Calculator721

Related Posts

ETA 2894-2

Valjoux 72c VZHC

Valjoux 88 VZHCL

ETA 2893-2

Valjoux 23C

Chronoswiss C.125