SKX173

The Seiko SKX173 is a U.S.-market variation of Seiko’s beloved SKX diver line, notable for its dial layout with rectangular markers and a bolder minute track. Introduced as an ISO-certified dive watch, it bridges utilitarian function and cult status, often chosen by those who appreciate the SKX lineage but want a look distinct from the more common SKX007. Its 42mm case and classic diver proportions make it comfortable for daily wear or underwater use.

The SKX173 uses the reliable 7S26 automatic movement, a non-handwinding, non-hacking caliber prized for its durability. Water resistance is rated at 200 meters, with a screw-down crown and Hardlex crystal. The key reference is SKX173 (with the 7S26-0029 case code on the caseback). Unlike the SKX007, the 173’s dial markers and hands are unique, and the U.S. version omits the “Diver’s 200m” text, a detail many collectors seek out.

Prices fluctuate based on condition and completeness—full box and papers command a premium, as does an unworn original rubber strap. The SKX173 was officially discontinued, so clean examples are increasingly tough to source. If you’re after this reference, confirm the dial, handset, and caseback match the U.S. spec, as swapped parts are common due to the SKX’s modding culture. This model’s specific dial and hands are what set it apart in the SKX family.