The Limited Edition MWC Mk III Automatic in black PVD is a modern recreation of the classic 1950s military watches produced to the UK Ministry of Defence reference 6B/346 Mk XI specification. While it preserves the clean vintage styling of the originals, it benefits from substantial modern upgrades in performance, durability, and reliability.

At its core is the proven 24-jewel Seiko NH35A automatic movement, featuring self-winding operation, a hacking function for precise synchronisation, and dependable everyday accuracy.

Heritage Design, Modern Engineering

In today’s cost-conscious military environment, watches built to this standard are increasingly rare, as lower-cost alternatives are often considered sufficient. Historically, armed forces around the world regularly procured watches from makers such as Rolex, IWC, Omega, and Longines. While that era has largely passed, demand remains strong for authentic military styling combined with superior modern specifications.

The Mk III has been produced without compromise, from its robust high-performance movement to its brushed stainless steel case inspired by 1950s/60s service watches. Each case is manufactured and hand-finished in Zürich, with a level of finishing that is visibly superior to most modern military-issued watches.

Matte Black Covert PVD Finish

The specialist matte black non-reflective PVD finish is widely favoured for military, police, and security applications where a discreet appearance is essential.

Unlike painted coatings often found on lower-quality watches, Physical Vapour Deposition (PVD) bonds with the steel at a molecular level, creating a finish that is significantly more resistant to fading, rubbing, and general wear. Under normal use, the finish remains intact for many years, though it may be affected by severe gouging or heavy abrasion.

Built for Demanding Conditions

The watch features both a screw-down crown and screw caseback, providing excellent protection against water ingress and making the Mk III a robust and dependable tool watch suitable for everyday wear or professional use.

Specifications

• Case Width (including crown): 42.5mm
• Case Width (excluding crown): 39.5mm
• Lug to Lug: 46.5mm
• Thickness: 11.3mm
• Weight: 61g
• Lug Width: 20mm
• Water Resistance: 100m / 330ft
• Caseback: Screw-down
• Crown: Screw-down
• Crystal: Scratch and Impact-Resistant Sapphire Crystal with Anti-Reflective Coating
• Luminous Material: Luminova
• Movement: 24-Jewel Seiko NH35A Automatic (Self-Winding)
• Functions: Hacking Seconds, Automatic Winding
• Strap Size: 20mm

Why Choose Sapphire Crystal?

Many customers ask why sapphire crystal is considered superior to standard mineral glass.

Synthetic sapphire is widely regarded as the premium material for watch crystals due to its exceptional scratch resistance, strength, and clarity. These qualities make it especially valuable for military personnel, police officers, security professionals, and anyone with an active outdoor lifestyle.

In our experience, the majority of cracked watch crystals involve mineral glass. Even hardened mineral crystal cannot match sapphire when subjected to demanding conditions.

Sapphire gains its strength through a specialised manufacturing and heat-treatment process that removes internal stresses and improves durability. It is then finished with anti-reflective coating to enhance legibility in bright conditions.

Because of its higher production cost, sapphire crystal is generally found only in better-quality watches — making it an excellent investment in long-term durability and performance.