The Basics

The Osmior Tourbillon Automatic has a case of 41mm that houses the automatic, chronometer-certified caliber L512. In its present form, the case is done in white gold; the hand-guilloched gold dial is black.

Brand: Leroy
Family: Osmior Range
Reference: LL104/2
Name: Osmior Tourbillon Automatic Regulator Black
Produced: N/A
Limited: No

Below is a detailed look at Leroy’s model LL104/2 from Osmior Range watch family, including the price, case details and movement features.

Leroy Osmior Range LL104/2

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The Details

Leroy’s Osmior Tourbillon Automatic Regulator Black (LL104/2) was originally released in N/A. This watch features a automatic movement beating at a frequency of 28800 bph (4 Hz) to provide a 52-hour power reserve when fully wound.

The Case

The white gold case measures 41mm in diameter and roughly mm thick. The round case is paired with a black color dial with -shaped hands, and a arabic numerals hour markers and minute track, covered by a sapphire glass. Leroy’s Osmior Range model LL104/2 is water resistant up to 50 meters (164 ft). A display caseback is over the back of the watch case.

Material: White gold
Glass: Sapphire
Back: Display
Shape: Round
Diameter: 41mm
Height: mm
Lug Width: N/Amm
W/R: 50

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Osmior Range LL104/2 movement is a powered by caliber L512 Manufacture Leroy made by Leroy. The 23-jewel automatic movement is 28.8mm in diameter. Its balance wheel oscillates at 28800 semi-oscillations per hour or 4 Hz. This movement offers a 52-hour power reserve.

Type: Automatic
Brand: Leroy
Caliber: L512 Manufacture Leroy
Base: N/A
Display: Analog
Diameter: 28.8mm
Jewels: 23
Reserve: 52 hours
Frequency: 28800 bph
Time: Hours, Minutes, Small Seconds
Additionals: Tourbillon Escapement, Chronometer

The Price

How much does the Leroy’s Osmior Range LL104/2 cost? This watch was introduced in N/A and has been in Leroy’s collection for around . This watch is not a limited release. As with most luxury watches, the price of depends on the availability and demand.

CURRENT PRICE: Not Available

For more information, visit Leroy online.


  • Brand: Leroy
  • Model: Osmior Tourbillon Automatic Regulator Black
  • Reference Number: LL104/2
  • Limited: No

Case & Dial:

  • Material: White gold
  • Glass: Sapphire
  • Back: Display
  • Diameter: 41
  • Thickness:
  • Lug Width: N/A
  • Dial Color: Black
  • Indexes: Arabic Numerals and -shaped hands
  • Water Resistance: 50 meters


  • Winding: Automatic
  • Brand: Leroy
  • Caliber: L512 Manufacture Leroy
  • Display: Analog
  • Diameter: 28.8mm
  • Jewels: 23
  • Power Reserve: 52 hours
  • Frequency: 28800 bph
  • Functions: Hours, Minutes, Small Seconds

About Leroy

Leroy logo

The L. Leroy brand considers itself the heir to an exceptional heritage, handed down through the generations since 1785. Over 220 years of history have shaped the House of L.Leroy, which has written some of the finest chapters in the history of French watchmaking and chronometry, supported in its endeavours by two dynasties of brilliant craftsmen, inspired as much by the applied arts as by … science. The company philosophy is based on this extraordinary past, which daily nurtures its vision of the future. The L. Leroy brand aims to encapsulate the breadth of knowledge acquired in luxury watchmaking products, using avant-garde techniques and boasting timeless designs. The name of the company was changed from L. Leroy to just Leroy in 2015. Leroy is part of the Festina Group group.

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