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Perpetual Lunar Calendar

actual width 14 cm

An astronomical dial showing the 8 phases of the Moon over a 29.5-day cycle. The gear train follows the lunar ratio, and a manual corrector lets you realign the display with the sky when it drifts. Base in wood-fibre-filled composite polymer, 14 × 14 × 18 cm.

Astronomy, Spectra series

Perpetual Lunar Calendar

€36.00

In stock, ships within 2 business days

An astronomical dial showing the 8 phases of the Moon over a 29.5-day cycle. The gear train follows the lunar ratio, and a manual corrector lets you realign the display with the sky when it drifts. Base in wood-fibre-filled composite polymer, 14 × 14 × 18 cm.

Parts
88
Build
3 hrs 30 min
Level
Intermediate
Footprint
14 × 14 × 18 cm
Weight
320 g
Glue and battery
None

Intermediate: several articulated parts

Order today: shipped by Thursday 12 November at the latest.

Free delivery in France on orders from €99.

1
  • Visa
  • Mastercard
  • American Express
  • Apple Pay
  • Google Pay
  • Missing part replaced free
  • Ships within 2 business days
  • 14-day returns
  • Illustrated manual included

Ages 14 and up. Contains small parts.

Perpetual Lunar Calendar in detail

The story

Long before printed calendars, the phases of the Moon set the rhythm of sowing, tides and festivals. Medieval astronomical clocks already displayed them, and the moon-phase indication is still one of the best-loved complications in watches and clocks.

What you'll see move

Day after day the disc moves on and the Moon goes from new to full and back again: eight phases over a 29.5-day cycle. The manual corrector lets you realign the display with the real sky in a few seconds.

Specifications

Number of pieces
88 pieces
Assembly time
3 hrs 30 min
Difficulty
Intermediate
Dimensions
14 × 14 × 18 cm
Weight
320 g
Material
PLA with 30% wood fibre
Hardware
Micro-screws and ball bearings included
Glue required
None
Battery required
None

In the box

  • 88 wood-fibre composite parts, ready to assemble
  • Micro-screws and ball bearings
  • Illustrated step-by-step assembly manual
  • No glue and no batteries: everything fits together and turns by hand
Read the assembly guide
14+

Ages 14 and up. Contains small parts: not suitable for children under 3, choking hazard.

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