The Marathon Anthracite SAR was first issued in 2018 for stealth during tactical night missions. Hand-assembled, with a durable black anti-reflective Ion-Plating (IP) armour on its 316L Stainless Steel case and movement.

Yet not all operators are built the same. The 36mm Anthracite MSAR has been added to the unit to accommodate smaller wrist sizes during tactical night ops.