Movado 250N

Description

The Movado 250N was a very flat and high-quality Swiss pocket watch movement with a nominal size of 17 lignes, although its actual diameter was somewhat smaller, only 36.8 mm. In the common Flume movement finders, it was even listed as 17-18 lignes.

The richly decorated base plate with perlage of varying sizes and with its transparent jewel bearings demonstrates the high quality of this classically constructed movement.

The mainspring directly drives the central minute wheel, followed by the third wheel, the decentral seconds wheel at 6 o’clock, and the steel escape wheel.

A classic Swiss pallet escapement is used.

The three double-screwed chatons for the third wheel wheel, seconds wheel, and escape wheel are a beautiful sight, along with the striped finish of the bridges – top quality.

The balance cock (not the fine adjustment!) was even patented in Switzerland .

It is said to be particularly well-suited for flat movements.

The ring-shaped fine adjustment mechanism functions technically like a swan-neck adjustment mechanism, perhaps even a touch more finely. It allows for precise adjustment of the screw balance wheel’s beat rate of 18,000 A/h.

The winding mechanism, or more precisely the switching mechanism of the Breguet gear, is very unusual. It does without a classic setting lever spring and instead uses a spring-assisted switching cam.

No expense was spared on the dial decoration either; it is entirely perlage-decorated. The small seconds subdial at 6 o’clock is even recessed, allowing for a minimal reduction in height on certain dials.

Technical data

Usage gallery

Patents

• CH34976