Strap for Horological Machine N°6 Alien Nation HM6 Turquoise

The MB&F Horological Machines 60.STPT.B features a lug width of 20 millimetres. This measurement is taken between the two vertical lugs of the case where the strap attaches, not from the case diameter itself (which is 50 mm). Always measure accurately with a digital calliper positioned perpendicular to the longitudinal axis of the wrist to avoid measurement error.

An alligator leather in slate grey or black anthracite is the most coherent choice with this timepiece's constructivist philosophy. Alligator amplifies the brutal and industrial language of the titanium case, whilst the natural grain pattern mirrors the topography of the exposed movement. Alternatively, vegetable-tanned calf in dark brown or a technical grey rubber strap maintains aesthetic equilibrium without compromising durability.

The 60.STPT.B employs a standard vertical lug attachment system. Position the watch face-down, locate the small hole or recess in the lugs, and use a spring bar tool to apply vertical pressure to release the internal stem. Once the lug is unlocked, the old strap slides free. Insert the new 20 mm strap by aligning the holes at both ends with the lugs, then reinsertion the lug using the spring bar tool until you feel a distinct click. This operation requires precision and proper tooling; consult a professional if you lack experience.

Yes, absolutely. Any strap manufactured with a 20 mm lug width is fully compatible with the MB&F Horological Machines 60.STPT.B, regardless of brand or supplier. The critical factor is ensuring that the strap ends have holes perfectly aligned with the case lugs, and that leather or material thickness is not excessive, otherwise smooth attachment becomes difficult. High-quality artisanal straps often permit aesthetic customisation that amplifies the already radical character of the timepiece.

A high-quality leather strap—alligator, calf, or shell cordovan—on a daily-wear timepiece like the 60.STPT.B has an average lifespan of 3 to 5 years before replacement becomes necessary. Longevity depends on intensity of use, climate conditions, humidity exposure, and maintenance frequency. A vegetable-tanned strap develops noble patina over time, though the leather progressively thins in flex zones. A rubber or NATO strap, conversely, maintains structural integrity for 5-7 years, with superior resistance to moisture and perspiration.