MB&F · Legacy Machines

Strap for Legacy Machine Perpetual Evo Green

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter44 mm
Reference07.T.GU
FamilyLegacy Machines
MovementMB&F caliber LM Perpetual Hours, Minutes | Date, Day, Leap Year, Month | Power Reserve Indicator
CaseTitanium

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Legacy Machines 07.T.GU

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Legacy Machines 07.T.GU, seen from the bench

The Legacy Machine 07 features the MB&F LM Perpetual caliber with a full perpetual calendar and power reserve indicator. The movement displays hours, minutes, date, day, month and leap year through a distinctive three-dimensional architectural arrangement. The mechanism integrates the perpetual calendar complications into a vertical structure characteristic of the Legacy Machines collection.

Frequently asked questions

What is the lug width of the MB&F Legacy Machines 07.T.GU?

The lug width of the MB&F Legacy Machines 07.T.GU is 20 millimetres. This measurement is precise and allows no variation: the horizontal lugs are spaced exactly 20mm apart. To verify strap compatibility, measure the distance between the two spring bars. A strap too narrow or too wide would cause misalignment and potential damage to the attachment mechanisms.

What is the best strap for the MB&F Legacy Machines 07.T.GU?

The best strap depends on context and aesthetic preference. For formal elegance, an alligator strap in dark brown or natural tone creates fascinating dialogue with the titanium case. For daily versatility, vegetable-tanned leather develops patina over time and provides understated sophistication. For authentic technical language, a grey NATO strap or FKM elastomer reflects the mechanical nature of the 07.T.GU. A deployant clasp enables rapid material changes.

How do you change the strap on an MB&F Legacy Machines?

Changing the strap on the 07.T.GU requires specific tools: a spring bar tool or quick-release tool. Locate the two horizontal lugs (at 12 and 6 o'clock). Gently push the tool underneath the first lug so the internal spring retracts, then extract the bar. Repeat for the second lug. Position the new strap's lugs in the housings and ensure both bars click firmly into place. Do not force: the 07.T.GU houses precision components that must not be damaged.

Is an aftermarket strap compatible with the MB&F Legacy Machines 07.T.GU?

Yes, any strap with 20mm lugs is compatible with the 07.T.GU, regardless of brand. Milanostraps offers artisanal leather, NATO and rubber straps specifically sized for this measurement. Compatibility is guaranteed by lug geometry: if the distance between spring bars is 20mm, the strap will install correctly without adaptation.

How long does a leather strap last on an MB&F Legacy Machines?

The lifespan of a leather strap depends on material quality, frequency of wear and exposure to moisture. A quality alligator or calf leather, if worn daily, typically lasts 18–36 months before showing significant wear. Vegetable-tanned leather develops patina that extends its aesthetic appeal even in decline. NATO and FKM rubber straps, being stable synthetic materials, last longer and require minimal maintenance.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only