Friday, April 3, 2026

The SB10 Jumping Hour Black Sapphire

From Sartory Billard -


Courtesy of Sartory Billard

This is the latest from long time friend of the blog, Armand Billard. Above is the SB10 Jumping Hour. And yes, I want one! The case is of stainless steel measuring 39.5 mm in diameter. The movement is from La Joux-Perret.

The hour is displayed in the large aperture at 6 o'clock. 

The minutes are, another story ; )

Courtesy of Sartory Billard


In their own words:


Minutes in orbit

The minutes are indicated by a sapphire disc completing a full rotation every sixty minutes. Around the cabochon, a peripheral ring coated with Super-LumiNova BGW9 traces the passage of time.

A red marker moves along this luminous ring, indicating the minutes with precision and clarity.

But it is at night that the SB10 reveals another dimension. The ring glows in a vivid turquoise, forming a continuous halo around the cabochon. The light appears to float, suspended around the central material.

Time is no longer simply read, it becomes an atmosphere: a slow, silent, almost hypnotic rotation, a luminous circle in motion, a small celestial phenomenon on the wrist.

Here are the pertinents, straight from SB HQ:


Reference: SB101SBLSA

Case: Stainless steel, 39.5 mm, alternating polished and brushed surfaces
Thickness: 11,5 mm
Lug to lug: 44 mm

Cabochon: Smoked sapphire

Movement: Swiss-made La Joux-Perret automatic movement, 55-hour power reserve coupled with a patented jumping hour movement

Water Resistance: 80 Meters

Bracelet Options:
– Sartory-Billard black rubber strap
– Sartory-Billard stainless-steel bracelet with alternating brushed and polished links, equipped with quick-release pins for easy strap changes

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