Valjoux 230

	Brand:	Valjoux
	Family:	Valjoux 23/72 Family
	Height:	6.47 mm
	Jewels:	13, 17
	Reserve:	48 hours
	Frequency:	18,000 A/h
	Winding:	Hand winding
	Diameter:	29.5 mm (13 ligne)
Image from http://ninanet.net/watches/others15/Mediums/mheuer.html	Complications:	2-Button, 9-Column Chronograph, Chronograph, Column Wheel Chronograph, Flyback Chronograph
	Hands:	30 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 9-Column Chronograph Balance Balance at 12:00 Column Wheel Column Wheel at 6:00
Production: 1954 – 1974
1910s	1920s	1930s	1940s	1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s

The Valjoux 230 is a hand-winding flyback chronograph movement in the Valjoux 72 family. The Valjoux 230 was produced in the 1970s.

The Valjoux 230 and 720 are almost identical except that the latter adds a 12 hour counter at 6:00 on the dial.

• Central hours and minute hands and chronograph seconds
• 30 minute counter at 3:00
• Running small seconds at 9:00

The Valjoux 230 was one of the movements used in the famous Heuer Bundeswehr Chronograph 3H Ref. 1550 SG Flyback.

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