Solid silver foundation
Every dial begins as a single piece of solid silver—never a printed or mass-produced approximation.

STELLARISFounder accessA one-of-one custom diamond starmap dial
Choose the exact date, time and place. We reconstruct that sky, machine its constellation into solid silver and set more than 40 natural-diamond stars by hand, with the final count determined by your constellation. No pattern is repeated. Your dial belongs only to you.
01 / Your Diamond Starmap Dial
Not a printed pattern. Not a stock constellation. The sky above your chosen moment becomes a one-of-one composition built from solid silver, radial colour, revealed silver lines and individually hand-set diamonds.
01.1 / Every star set individually
More than 20 hours of individual hand-setting by a master jeweler go into every timepiece. More than 40 natural diamonds are placed one by one in the positions of your personal sky, with the final number determined by your constellation, while every tapered lab-grown baguette is individually set around the chapter ring.
Every dial begins as a single piece of solid silver—never a printed or mass-produced approximation.
A blue or black radial treatment gives the surface its changing light and visual depth.
Your astronomical data becomes a unique machining plan for the constellation beneath the hands.
Precision carving removes colour exactly where required, exposing crisp solid-silver constellation lines.
01.3 / Your constellation revealed in silver
After the radial colour is created, CNC precision removes it only where your constellation requires. The crisp lines you see are the solid silver dial itself, revealed beneath the surface—not printed or added on top.
02 / Your moment becomes the map
A birth. A wedding. An achievement. A beginning. You choose the date, exact time and location; astronomical data reconstructs the sky above it and turns that unrepeatable moment into the blueprint for your dial.
An exact place, date and time—chosen because it matters to you.
Astronomical data reconstructs the stars visible above that moment.
The personal map is individually machined into a solid silver dial.
A master jeweller sets every natural-diamond star by hand.
03 / Mechanical precision
The Swiss CA Calibre G101 begins with the LJP G101 base and is modified in-house to our standards and aesthetic, with the highest-end finishing ChronoAstra has ever offered. It is revealed through a sapphire exhibition caseback, extending the architecture of the dial through the entire watch.
03.1 / Inside the atelier
The Swiss CA Calibre G101 begins with the LJP G101 base, disassembled and rebuilt in-house to ChronoAstra standards, then revealed through the sapphire exhibition caseback.
More than 20 hours of individual hand-setting by a master jeweler place each natural diamond into the solid-silver radial dial, framed by a chapter ring of 0.77 ct lab-grown tapered baguettes.
04 / Titanium and dial expressions
Each short film begins as its panel enters the viewport, letting the material transitions unfold naturally with the page.
Bracelet 2.0, exhibition Swiss CA Calibre G101 and the complete case architecture in their clearest expression.
The exact shade may vary and will develop its own blue patina with wear.
05 / Interactive case explorer
Choose a case colour, then move through the front, crown, profile and exhibition caseback renders to compare the details that photographs from one angle can miss.

Shared by every execution / Swiss CA Calibre G101
Natural Titanium, Founder Blue and DLC Black all frame the same Swiss CA Calibre G101, based on the LJP G101 and modified in-house to our standards and aesthetic.
06 / Founder VIP-exclusive finish
The durable coating will develop an individual blue patina through wear. Its precise shade may vary from the reference film, between finished pieces and under different light.
07 / Titanium bracelet 2.0
The Grade 5 titanium bracelet introduces ChronoAstra’s own Quick Release 2.0 and micro-adjustment system for effortless changes and a precise fit.
Private Founder Release / 100 inaugural places
Enter your email to view the complete Founder commission — price, inclusions and the July 2027 allocation — before you configure and purchase.