Showing posts with label Annual Calendar School. Show all posts
Showing posts with label Annual Calendar School. Show all posts

Monday, February 17, 2020

Annual Calendar School Piece

Courtesy of Laurent Ferrier
Here are the pertinents -

LIMITED to 5 Pieces
Ecole Annual Calendar Vintage
LCF025.AC.J2B
TECHNICAL DETAILS

Movement:
• Manual winding calibre LF126.01.
• Swiss lever escapement and balance screw.
• Indications: Hours and Minutes in the centre. Small seconds at 6 o´clock. Power reserve area indicator on the back side. Annual calendar:
- Calendar central hand.
- Day-disc and Month-disc (Automatic correction for months with 30 or 31 days. One correction on March 1st)
• Semi-instantaneous calendar. Days and month semi-instantaneous apertures.
• Correctors: Crown for winding, time-setting, calendar central hand and months. Push button at 10 o´clock for days of the week.
• Correction forward / backward of the calendar on intermediate position.
• Movement diameter: 31.60 mm (14´´´).
• Thickness: 5.80 mm.
• Frequency: 3Hz (21´600 /H).
• Power reserve: 80 hours.
• Number of components: 235.
• Number of jewels: 23.

Case:
• stainless steel
• Size: 40 mm diameter
• Thickness: 10.10 mm or 12.80 mm including the sapphire crystal
• Domed sapphire crystals, front and back
• Water resistant to 30 meters
• “Ball-shaped” crown in stainless steel

Dial:
• Opaline yellow gold toned vintage inspired
• Vintage-inspired numerals painted in brown 1-30 and in red for 31
• Small second at 6 o´clock, with a circular satin brushed outer circle and snailed in the center
• Bevelled day and month apertures.

Hands:
• 18K/750 210Pd white gold.
• Hours and minutes: “Assegai-shaped”, ruthenium treated
• Seconds: baton-type with counterweight, ruthenium treated
• Date: painted in white

Strap:
• Honey alligator leather witch matching Alcantara lining.
• Pin buckle or a double blade folding clasp.