San Francisco, CA - May 28, 2026. Barrelhand today introduced Monolith, a mechanical tool watch engineered from the ground up for modern spaceflight. Developed over six years with partners across aerospace, additive manufacturing, and materials engineering, Monolith was built in accordance with ISO aerospace standards, NASA material guidance, and EVA/IVA testing protocols. It was designed for crewed deep-space missions, where logistics chains end and every instrument must function without external support.

A new chapter of space exploration is unfolding. The global space economy surpassed $600 billion in 2024, driven increasingly by commercial operators rather than government programs. Permanent lunar infrastructure, long-duration crewed missions, and growing civilian access are accelerating demand for tools built to operate beyond Earth. Monolith is one of them.

Monolith is a spaceflight-tested analog timing instrument rated from vacuum to 20 ATM, temperatures from -120°C to +120°C, and shock resistance to 3,000 g - all in a 3D-printed aerospace-alloy case assembly weighing just 1.1 oz (31 grams), excluding the EVA/IVA dual-mode strap.

Integrated into the caseback is a Memory Disc Module - a 1.4-gram NanoFiche archive carrying 3 GB of curated cultural artifacts from around the world, designed to endure for millennia. It serves as a psychological anchor, connecting the astronaut to home, while carrying a message outward for future generations and civilizations to discover.

In 2025, Monolith completed its first flight test in a spaceflight environment, worn beyond the Kármán line by astronaut Gökhan Erdem aboard Blue Origin NS-34. Versions of the Memory Disc have separately reached the lunar surface on two missions in 2024 and 2025, with three additional lunar integrations scheduled through 2028.

Access to design data allows mission-critical tools to be reproduced, serviced, and upgraded on-site. At launch, Barrelhand will release key Monolith design files and technical documentation as an open-source reference platform. Early access is available on request.

“Monolith was developed from the ground up to operate in the harshest environment humans have ever explored. Every design decision was driven by aerospace engineering principles - building it felt closer to engineering a spacecraft than a watch.”

Karel Bachand, CEO & Founder, Barrelhand

“Psychology and culture are not secondary to engineering - they will determine whether life in space is sustainable. Radiation, vacuum, and shock have engineering solutions. Isolation and loss of identity require human ones. Monolith addresses the first. Memory Disc supports the second. Integrating them was not a design choice - it was a logical necessity.”

Michael Sorkin, Co-Founder, Barrelhand

Key Features

• Chassis: 38 × 45 × 11.8 mm 3D-printed Scalmalloy with Aircore insulation, 6.5 g. Scalmalloy is an aerospace alloy used in satellite development - comparable to or exceeding the yield strength of commercially pure titanium at nearly half the weight. The Aircore chamber provides over 10× better insulation than an equivalent steel case. Collaborators: Materialise, APWORKS.

• Airlock Crown: 8 mm glove-friendly crown, International Orange type-II anodize, operable underwater or in vacuum.

• Dial: Monolithic Aerolight X2 Ceramic, laser-welded construction, with Swiss Super-LumiNova® C3-X2 pigmentation - 4× brighter than silk-screen-printed C3-X1 grade (equivalent surface area) after one hour. No paints or adhesives; tested for EVA use. Collaborators: Swiss Super-LumiNova®, Black Badger, HGH Concept, Les Cadraniers de Genève (FP Journe).

• M1 Engine and Engine Mount: Shock-resistant to 3,000 g; amagnetic to ISO 764 / DIN 8309 (4,800 A/m); 4 Hz Glucydur balance; nickel-phosphorous escape wheel and pallet fork; automatic bidirectional winding; stop-seconds; 50-hour power reserve. Built on the Sellita SW300-1b. The engine-mount system provides omnidirectional shock absorption and additional insulation from the external environment. Collaborator: Sellita.

• Memory Disc Module: 3 GB NanoFiche cultural payload engineered to endure in excess of 1,000 years. Includes 286 UNESCO preamble translations, curated global artworks, a visual sound artifact by Richard D. James, children's paintings by R.O.C.K., and the original French edition of Le Petit Prince. Collaborator: Stamper Technology.

• Window: Lab-grade C-plane optical sapphire with reduced spalling characteristics, 2× greater impact strength than traditional sapphire, with MgF₂ anti-reflective coating and a Hytrel L-ring suspension system for additional shock absorption. Collaborator: Guild Optics.

• EVA/IVA Strap: Custom hook strap with dedicated EVA and IVA modes, grade-5 titanium G-hook microadjust. Available in black, International Orange, or black with orange stripe. Collaborator: Nick Mankey Designs.

• Hardware: Torx screws (T15, T6) on caseback and strap bar, compatible with existing ISS toolsets and optimized for driver stability in microgravity. Fluorosilicone aerospace O-ring system with a performance range comparable to ISS airlock gaskets. Collaborators: Marco Sealing Solutions, Accu. Assembly & QC: Gehan & Dorety Watchmaking.

Availability

Price: USD 9,750. The first production run has already been delivered to early customers. New orders are now open, with deliveries expected in Q4 2026. Learn more at barrelhand.com/monolith

Full Specifications

Operating limits

• Pressure: 0 ATM (vacuum) to 20 ATM (200 m water resistance equivalent)
• Temperature: -120°C to +120°C in vacuum
• Shock: 3,000 g

Chassis

• 3D-printed Scalmalloy®, type-II anodize
• Aircore insulation chamber
• 38 × 45 × 11.8 mm, 20 mm lug width
• Total watch weight (excluding strap): 31 g (1.1 oz)

Display

• Monolithic Aerolight X2 Ceramic, laser-welded construction
• Counterbalanced seconds

Window

• C-plane lab-grade optical sapphire with MgF₂ anti-reflective coating
• Hytrel® suspension impact system

Memory Disc Module

• 19 mm diameter, 1.2 mm thick, 1.4 g
• 3 GB storage
• Data preservation rated in excess of 1,000 years
• NanoFiche Technology

Airlock Crown

• Winding and time-setting operable in water or vacuum
• Type-II anodize, International Orange

M1 Engine

• 50-hour power reserve, automatic bidirectional winding, stop-seconds
• 4 Hz amagnetic Glucydur balance; regulated ±6 s/d from factory
• Nickel-phosphorous escape wheel and pallet fork
• ISO 764 / DIN 8309 certified amagnetic to 4,800 A/m
• Nivatronic hairspring collet, Nivarox hairspring, Nivaflex mainspring
• Chronofiable A8 tested

Strap

• EVA / IVA dual-mode
• Microadjustable grade-5 titanium G-hook, universal fit
• Colors: Barrelhand Orange, Black, Black with Orange Stripe

About Barrelhand

Barrelhand is a privately held, fully independent technology company founded in 2014 in San Francisco. The company develops flight-rated instruments and systems for human space exploration, working with partners across aerospace, advanced manufacturing, and cultural institutions - including UNESCO. Its hardware has flown on three space missions to date, including two to the lunar surface, with further international missions planned through 2028.

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