
THE SILVER DIAL
Laser-engraved silver dial with refined finishing on the subdial at 9 o'clock.
Heritage Chrono
"LUNAR LEGACY" 50TH ANNIVERSARY


In 1970, Oldmillion received the prestigious "Lunar Legacy" from space agencies. The prize recognised contributions to space exploration and the Heritage Chrono's role in early orbital missions. Now, 50 years later, a special commemorative watch has been created in its honour.

To really capture the iconic design history of the Heritage Chrono, Oldmillion has included a 42 mm case in stainless steel, inspired by the chronograph's legendary 4th generation style.



Automatic, 42 mm stainless steel
Ref. HMC-SB-42-001To honour the role of the Heritage Chrono in early space-exploration missions, this 42 mm stainless steel chronograph features a silver dial laser-engraved with Ag925, a blue ceramic bezel with white enamel tachymeter, and a special caseback animation of a commemorative lunar engraving. Powered by the Oldmillion Precision-Certified OM-Calibre 3861, with a 50-hour power reserve and resistance to magnetic fields reaching 15,000 gauss.
HERITAGE CHRONO HERITAGE
KEY FEATURES

Laser-engraved silver dial with refined finishing on the subdial at 9 o'clock.

A legendary tachymeter scale shown in white enamel on a blue ceramic bezel, with blue PVD hour markers.

Caseback engravings honour the pioneers of orbital exploration with a commemorative motif.

Blue nylon fabric strap with a discreet trajectory motif embossed on the lining.
MOVEMENT
Manual-winding chronograph with Low-Friction escapement. Certified Precision Certified, independently approved, resistant to 15,000 gauss.
KEY MATERIALS

Robust, corrosion-resistant, ideal for everyday wear.

scratch-resistant and chemically inert.

Scratch-resistant and anti-reflective.
CASEBACK MAGIC
On the caseback, Lunar travels towards the Moon as the chronograph is activated. An Earth disc rotates once per minute, synced with the small seconds hand.
Since 1968, the Lunar Legacy has been given to individuals and companies who made significant contributions to the success of human space missions.


"I took two Oldmillion watches into space. One with the mission elapsed time and the other with Houston time."
PRECISION
Our attention to detail is evident in everything we do. With finely curved baton hands, angular hour markers and an embossed Lunar counter at 9 o'clock.

Precision Certified
Twice as precise as any officially certified chronometer. Tested and certified twice, ensuring peak performance.
SUPPORT
SPRING 2026 CLEARANCE
Was $594 — now 50% off. Comes with Box + Original Certificate. Free shipping on all orders.