Vaucher Manufacture Fleurier Seed VMF 5401/180 Automatic Micro-Rotor Extra-Thin Skeleton Movement, 2 Hands

Introduced in 2017, the Seed VMF 5401/180 calibre by Vaucher Manufacture Fleurier is a slender and robust mechanical self-winding skeleton caliber measuring 2.6mm thickens and equipped with micro-rotor.  Skeleton option types upon request.

Fitting diameter 30 mm (13 ¼’’’)
Depth 2.6 mm
Indications and functions: Hour, minute
Type of balance: Variable inertia with gold inertia-blocks
Frequency: 3 Hz (21,600 A/h)
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 anti-clockwise sense of the weight viewing from the dial side
Power-reserve: 48 hours
Variable inertia balance
Rapid rotation barrel
Number of components: 160
Number of jewels: 29

Specific features and finishes
• Plate satin-finished and rhodium-plated on dial side, skeleton
• Bridges satin-finished and rhodium-plated, skeleton, hand-fnishing
• Bicolour engraving
• Bevels and apertures diamond-polished
• Ceramic ball-bearing
• Wheels circular-grained on 2 faces
• Flat-head screws, locked
• Pivots and flanges rolled

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