Home > Collectibles > The Lunar Hijra, splendid arabic timepiece by Konstantin Chaykin

The Lunar Hijra, splendid arabic timepiece by Konstantin Chaykin

This slideshow requires JavaScript.

Hijra (translated from Arabic) means migration and emigration. The term is used to denote the Islamic era established by the second caliph of the Arab caliphate Omar I in 638 of the Common Era in honour of the migration of the Prophet Mohammad from Mecca to Yasrib (Medina). This event is considered as key to the history of the emergence of Islam. 17 years after the great migration, caliph Omar I made it the foundation of the Islamic calendar, taking Friday, 16 July 622 – the day the Prophet Mohammad left Mecca – as the first day of the new era. It is a lunar calendar, meaning that the periods are calculated according to the changes in the phases of the moon. It thus does not depend on the movement of the sun.
You will not be able to find a timepiece even close to this one at any other Manufacture. The design of this clock contains an invention patented by Konstantin Chaykin (patent no. 2308748): a device that displays the months and dates of the Islamic calendar. The case of the clock is made from precious species of wood and represents a stylised mihrab into which the unique clock movement is placed. Its sides are held together by an openwork lattice with ornate floral decor in the tradition of mosques.
Over 350 manually polished and smoothed parts are assembled in a single movement, thereby demonstrating the unsurpassed quality of manual workmanship. The Maltese cross provides constancy in the winding torque of the spring, thereby enhancing the accuracy of the clock’s operation. Meanwhile, eight precision ball bearings ensure the movement’s axes work for hundreds of years.
The Lunar Hijra contains seven complications: 1. a one-minute tourbillon, completing 18,000 half-oscillations per hour, 2. a moon-phase display, 3. a month display (Gregorian calendar), 4. a date display (Gregorian calendar), 5. a days-of-the-week display in Arabic, 6. a month display (Islamic lunar calendar) with a mechanism to adjust the duration of the lunar month, 7. a date display (Islamic lunar calendar).
The Lunar Hijra collection includes a basic model with a month and date display (Islamic lunar calendar), as well as a modified version of the clock featuring a retrograde month and date display (Islamic lunar calendar).
Hijra
Ref. T760W730400
Movement: THJ 01-2
Frequency: 18,000 vibrations per hour, 13 jewels, anchor escapement, one-minute tourbillion, 10 days power reserve
Functions: hours, minutes, day, moon phases, Muslim calendar patented device (date, month, day in Arabic), Gregorian calendar date, month
Dial: gilded brass, nickel-plating, steel hands manually blued
Case: precious woods (wenge), nickel-plating, traditional ornamental pattern high finishing
Dimensions: 171 mm x 286 mm x 165 mm
Hijra
Ref. T760W730400
Movement: THJ 01-2
Frequency: 18,000 vibrations per hour, 13 jewels, anchor escapement, one-minute tourbillion, 10 days power reserve
Functions: hours, minutes, day, moon phases, Hijra calendar patented device with retrograde display (date, month, day in Arabic), Gregorian calendar
Dial: gilded brass, nickel-plating, steel hands manually blued
Case: precious woods (wenge), nickel-plating,  traditional ornamental pattern high finishing
Dimensions: 171 mm x 286 mm x 165 mm
Hijra
Ref. T760SS730100
Movement: THJ 01-2
Frequency: 18,000 vibrations per hour, 13 jewels, anchor escapement, one-minute tourbillion, 10 days power reserve
Functions: hours, minutes, day, moon phases, Muslim calendar patented device (date, month, day in Arabic), Gregorian calendar date, month
Case: steel, brass, nickel-plating, precious woods (wenge)
Dimensions: 254 mm x 249 mm x 123 mm

Categories: Collectibles Tags:
  1. No comments yet.
  1. No trackbacks yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: