Manufacturer | Landeron |
Caliber Number | 4750 |
Type | Electric |
Lignes | 11.5”’ |
Jewels | 12 |
Vibrations Per Hour | 18,000 bph |
Anti-Shock Device | Incabloc |
Functions | Central hours; central minutes; central sweeping seconds |
Country of Manufacture | Switzerland |
Known Models | Wittnauer Electro-Chron, Bucherer Electric, Enicar Electric, Nivada Grenchen Electric (Add your watch to the comments below…) |
The Landeron caliber 4750 was the first Swiss made electric watch movement. This caliber was launched circa 1960 ~ 1961 and is found in a wide variety of vintage electric watches from the 1960s. There is a similar Landeron caliber 4751 with 13 jewels.
The original battery was numbered WD-4 or WD-5 and contained mercury. For that reason, the battery is no longer available. Some folks use smaller diameter modern batteries with an adapter ring. If you have experience with this, please share in the comments below.
Recent Comments
Hi, can it be easily replaced by the NH36? Mine is broken, and for the…
You can also charge most of these watches with an old Braun electric toothbrush charger.…
Golby Watches Aquareef is a great watch and uses this movement
so it means every tag heuer with miyota 0S20 must be a replica? i had…
i have a tag heuer watch (monza calibre 36) from my uncle. and the movement…
Ancor made of plastics has advantages over the tradional material. Many watchmovents would not run…
Ancor made of plastic has advantages over the classic material.