Movements & Complications

Seed VMF 5401/40

Nom du mouvement - Front Nom du mouvement - Back

Seed VMF 5401/40

Hour, minute, big date at 12


Vaucher Manufacture Fleurier proposes a small masterpiece of complexity barely 5.6 mm deep derived from its tradition and its artisanal-industrial manufacturing process. A development of the VMF 5300 movement, it retains the latter’s robustness and slenderness while adding a new automatic, allowing it to wind and recharge as quickly as a classic automatic. Specially optimised for the Seed VMF 5400 by the company atokalpa, the variable inertia balance ensures optimal isochronism. Designed to accommodate additional mechanisms

 > From 25 pieces in its Seed VMF 5400 version, with personalisation of the oscillating weight.

> From 150 pieces in its S-VMF 5400 version, with personalisation of the bridges (shapes and decorations) and of the oscillating weight.

Functions & Complications
Self-winding - 2 hands - big date
Main dimensions
Fitting of 13 ¼” (30.00 mm)
Thickness of 5.6 mm
Power reserve
42h
Number of components
218
Rubis
29
Frequency
3 Hz (21’600 A/h)
Type of balance
Variable inertia with gold inertia blocks
Type of stud-holder
Mobile
Type of balance-spring
Flat
Type of oscillating weight
Off-centre/Tungsten micro-rotor
Oscillating weight winding direction
Single direction in clockwise sense of the weight viewing from the dial side
Chronometry
Variable inertia balance
Rapid rotation barrel
Specific features and finishes
Circular-grained plate on dial side and bridge side, fine circular-graining below the balance, rhodium-plated
Bridges with Côtes de Genève decor, rhodium-plated
Bicolour engraving
Counterbores and apertures diamond-polished
Ceramic ball bearing
Wheels circular-grained on 2 faces
Flat-head screws, locked
Pivots and flanges rolled