Few watches are tied to a unit as specific as this one. The Marathon JDD YAMAM, reference WW194021SS-0706, is the 46mm Jumbo Day/Date automatic diver in the edition associated with YAMAM, the Israel Police special unit, presented with a black dial and stainless steel bracelet.

The clearest sign of the YAMAM edition is its day wheel. Where the standard JDD displays the weekday in English or French, this version pairs English with Hebrew, a practical change for the people who wear it and a distinctive detail for collectors. Marathon has a long record of building watches for specialized government and military users, from its first Royal Canadian Air Force order in 1941 to elite Canadian and U.S. forces today, and unit editions like this one are part of that tradition.

The watch itself is the full Jumbo Day/Date specification. A 316L stainless steel case, 46mm across and 18mm thick, houses the Sellita SW220 automatic with 26 jewels, Incabloc shock protection and roughly 41 hours of reserve. The screw-down crown is protected by guards and water resistance reaches 300 meters. A domed sapphire crystal covers the black dial, where tritium gas tubes glow on the markers and hands. The 120-click unidirectional bezel, carrying a MaraGlo pip, is oversized for gloved hands.

Marathon JDD YAMAM WW194021SS-0706 Specifications

• Edition: YAMAM, English/Hebrew day wheel
• Reference: WW194021SS-0706
• Case: 46mm 316L steel, 18mm, 55mm lug to lug
• Movement: Sellita SW220 automatic, 26 jewels, Incabloc
• Water resistance: 30 ATM / 300 meters
• Crystal: domed sapphire
• Bezel: unidirectional 60-minute, 120 clicks, MaraGlo pip
• Lume: tritium gas tubes on markers and hands
• Bracelet: stainless steel, 22mm lugs

A unit edition with real-world purpose behind every detail.