The Basics

The MB&F Legacy Machine Perpetual reference 03.WL.B was introduced in late 2016 as the non-limited edition LM Perpetual. It features a white gold case and an openworked dial with charcoal details. Its introduction coincided with that of the limited edition 03.WL.P with purple details in its movement.

Brand: MB&F
Family: Legacy Machines
Reference: 03.WL.B
Name: Legacy Machine Perpetual White Gold
Produced: 2016
Limited: No

Below is a detailed look at MB&F’s model 03.WL.B from Legacy Machines watch family, including the price, case details and movement features.

MB&F Legacy Machines 03.WL.B

- Advertisement -

The Details

MB&F’s Legacy Machine Perpetual White Gold (03.WL.B) was originally released in 2016. This watch features a hand-wound movement beating at a frequency of 18000 bph ( 3 Hz) to provide a 72-hour power reserve when fully wound.

The Case

The platinum case measures 44mm in diameter and roughly 17.5mm thick. The round case is paired with a white color dial with proprietary-shaped hands, and a roman numerals hour markers and minute track, covered by a sapphire glass. MB&F’s Legacy Machines model 03.WL.B is water resistant up to 30 meters (98 ft). A display caseback is over the back of the watch case.

Material: Platinum
Glass: Sapphire
Back: Display
Shape: Round
Diameter: 44mm
Height: 17.5mm
Lug Width: N/Amm
W/R: 30

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Legacy Machines 03.WL.B movement is a powered by caliber LM Perpetual made by MB&F. The 41-jewel hand-wound movement is mm in diameter. Its balance wheel oscillates at 18,000 semi-oscillations per hour or 3 Hz. This movement offers a 72-hour power reserve.

Type: Hand-Wound
Brand: MB&F
Caliber: LM Perpetual
Base: N/A
Display: Analog
Diameter: mm
Jewels: 41
Reserve: 72 hours
Frequency: 18000 bph
Time: Hours, Minutes
Additionals: Power Reserve Indicator

The Price

How much does the MB&F’s Legacy Machines 03.WL.B cost? This watch was introduced in 2016 and has been in MB&F’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 MB&F online.


  • Brand: MB&F
  • Model: Legacy Machine Perpetual White Gold
  • Reference Number: 03.WL.B
  • Limited: No

Case & Dial:

  • Material: Platinum
  • Glass: Sapphire
  • Back: Display
  • Diameter: 44
  • Thickness: 17.5
  • Lug Width: N/A
  • Dial Color: White
  • Indexes: Roman Numerals and Proprietary-shaped hands
  • Water Resistance: 30 meters


  • Winding: Hand-Wound
  • Brand: MB&F
  • Caliber: LM Perpetual
  • Display: Analog
  • Diameter: mm
  • Jewels: 41
  • Power Reserve: 72 hours
  • Frequency: 18000 bph
  • Functions: Hours, Minutes

About MB&F

MB&F logo

Maximilian Busser and Friends, normally shortened down to MB&F, is a Swiss watch brand founded by Maximilian Busser in July 2005 and based in Geneva, Switzerland.

View all MB&F watches.

MB&F Watches

View more MB&F watches.

Discover new luxury watches and watch brands for men and women from our database of over 20,000 watches across more than 100 different brands.


Please enter your comment!
Please enter your name here