Alex, the founder of British strapmaker Haveston, is fueled by a passion for horology and history. Throughout Haveston's varied and growing portfolio, its designs are defined by a focus on the honest utilitarian character of vintage military industrial equipment used by service personnel for aviation, space exploration, combat and other purposes.

If Haveston's commitment to continuous refinement and innovation is any indication, we can expect much more from the company -- with one underlying idea. According to Alex: "At the end of the day, it always comes back to that service-driven purpose, regardless of whether that is to your community, family, or the world. Having a little reminder of that on your wrist is quite special."

Haveston's IVA collection is inspired by the original vintage space-flown straps used by astronauts to wrist-mount mission tools. The utilitarian construction lends itself to a variety of lunar, pilot and other tool watch styles. IVA makes a great dive strap!

A NASA acronym, L.O.S. stands for “loss of signal.” L.O.S. commonly occurred when a manned spacecraft momentarily lost communication with Earth during specific stages of flight, such as re-entry into Earth's atmosphere or navigating the far side of the moon. While it could also signify an off-nominal event, L.O.S was a necessary and anticipated stage that, like other immeasurable unknowns of pioneering space flight, was overcome with engineering, perseverance and curiosity. Haveston's interpretation of L.O.S. features a black densely-woven nylon exterior, black lining, a subdued grey mission patch symbol and historical tribute issue markings.

Double layers along with a hook-and-loop configuration give the IVA a higher side profile than other Haveston straps. Full-length webbing lining provides uniform structure and support, while the high-grip rubber locking keeper ensures secure closure (spare also included). The one-piece configuration provides security in the event of spring bar failure, and the robust stainless steel bead-blasted hoop buckle makes this strap a highly secure mission tool.

Material:

• Nylon exterior with hook-and-loop (Velcro) lining
• Rubber keeper
• Bead-blasted stainless steel buckle

Sizing:

• Available in 20mm and 22mm
• Shorter than traditional externally mounted EVA straps; engineered for enhanced functionality, comfort and aesthetics
• 1.6mm - 2.5mm thick
• 290mm (11-3/8") long, excluding buckle
• Fits wrists 160mm - 210mm (6-3/8" - 8-1/4")

Notes:

• For watches with limited spring bar-to-case clearance, install bars over the strap, and consider using curved bars
• Avoid forcing the strap through; this may deteriorate the strap, bars and case

Includes:

• One free pair of strong, seamless double-flange stainless steel spring bars
• Spare rubber keeper