HEUER Leonidas Valjoux 7734 Bi-Compax Chronograph Watch Movement

Authentic HEUER Calibre Valjoux 7734 mechanical (hand winding) watch movement.

This is the bi-compax (with two small registers) original movement for Heuer models..

DESCRIPTION

Valjoux 7734, Swiss Made. mechanical calibre.

Diameter: 31 mm (14 ”), heigth 6.61 mm – 17 rubies..

PERFORMANCE

Balance frequency: 18,000 vibrations per hour (2.5 Hz).

Power reserve: about 45 hours.

DISPLAY

Time: central hours — central minutes — 60 seconds counter at 9:00.

Chronograph: central seconds — 45 minutes counter at 3:00.

Date disc: “roulette” type, positioned for date opening at 6:00.

DECORATION

Movement marked “HEUER LEONIDAS SA — SEVENTEEN / 17 JEWELS — UNADJUSTED — | 7734”.

The movement is working but it was never tested for precision. As for any other vintage or unused watch movement, a basic revision is recommended.

The article is sold as is – any other parts that are not visible in the photos or mentioned in the description, are considered as not included with this article.

All the movements in our offers are original service or replacement parts meant to be used by professionals for watch servicing. The movements are handled and stored in different boxes or containers, operations that may affect their accuracy. These movements are supposed to be cleaned, oiled, timed or adjusted by a professional before fully corresponding to the manufacturer specifications.