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Biggs Jasper

The Louis Moinet crown guard


Biggs Jasper

The dial of this Treasures of the World unique piece features rich brown Biggs jasper, carefully selected and expertly worked by Daniel Haas, a world specialist in the realm of semi-precious stone craftsmanship.

The natural beauty of the jasper gemstone is perfectly complemented by the mechanical majesty of a tourbillon escapement.

Central golden hour and minute hands as well as golden hour markers are thrown into sharp relief by the striking jasper mineral that surrounds the tourbillon at 6 o’clock and open-worked mainspring at 12 o’clock.

Jasper mineral comes from volcanic rock and exists in a range of colours, with no two stones ever alike. The jasper stone chosen for this timepiece was discovered in Biggs, Oregon and boasts luxuriant, chocolately tones. Its exceptional quality ensures that it is a rare find.

The dial is completed by the highly-polished, hand-bevelled three-armed bridge supporting the tourbillon which extends vertically to the highly-visible main spring.

Turning over this Treasures of the World unique piece reveals the ‘octopus spring’ of the winding and setting mechanism through the display-back, effectively three springs in one – pull-out piece spring, lever spring and click spring – as well as the Côtes du Jura engraved movement plate.

> More Technical Specifications

Technical Specifications

Treasures of the World: Biggs Jasper is a unique piece featuring an incredible dial crafted from Biggs jasper as well as an exclusive tourbillon escapement.

  • Features and Indications

    Central hours and minutes 

    Dial crafted in Biggs Jasper

    Highly visible main spring 

    Superbly-polished and hand-bevelled vertical bridge


    Display-back octopus spring

    Côtes du Jura engraved movement plate

  • Dial and Hands

    Dial crafted in Biggs jasper

    Golden hour and minute hands

    Golden hour markers

  • Movement and Finishing

    Exclusive tourbillon movement 

    Winding: Hand-winding  

    Oscillations: 21,600 vph 

    Frequency: 3 Hz 

    Lines: 14 ½ 

    Power reserve: 72 hours 

    Jewels: 19 

    Tourbillon cage: 1 rotation per minute 

    Escapement: Side lever

  • Case and strap

    Case: Original design by Louis Moinet, made up of 50 parts 

    Material: 18k rose gold

    Case diameter: 47mm  

    Water resistance: 30m 

    Crystals: Two sapphire crystals with anti-reflective treatment 

    Caseback: Secured with four screws, engraved with individual number and Louis Moinet markings 

    Strap: Louisiana alligator leather, hand-sewn, 24 mm width between lugs Buckle: 18K rose gold folding clasp bearing Louis Moinet symbol

Biggs jasper dial
Carefully selected and expertly crafted by semi-precious stone world specialist Daniel Haas
Rotating tourbillon cage that helps to maximise timekeeping precision by averaging the effects of positional variations