Prospex
37 references catalogued, spanning production starts from 2017–2021.
Professional Specifications, and the line where Seiko keeps its dive and sport watches. Its ancestor is the 62MAS of 1965, Japan's first dive watch, and the lineage runs through the watches issued to the Japanese Antarctic expedition and worn on Naomi Uemura's solo Arctic crossing. Seiko makes its own hardening treatments, its own Lumibrite and, in the higher references, its own Spring Drive — a vertically integrated approach that is rare at any price.
References
Browse the Prospex collection.
Oldest to newest
01SLA017J1Stainless Steelfrom 201702SPB051J1Stainless Steelfrom 201703SBDC113Stainless Steelfrom 202004SBDX043Stainless Steelfrom 202105SPB143J1Stainless SteelRecord pending06SPB185J1Stainless SteelRecord pending07SBDX001Stainless SteelRecord pending08SBDX023Stainless SteelRecord pending09SBDX031Stainless SteelRecord pending10SRPC91K1Stainless SteelRecord pending11SRPC95K1—Record pending12SLA019J1Stainless SteelRecord pending13SLA021J1Stainless SteelRecord pending14SPB077J1Stainless SteelRecord pending15SPB317Stainless SteelRecord pending16SBDC001Stainless SteelRecord pending17SBDC003Stainless SteelRecord pending18SBDC031Stainless SteelRecord pending19SBDC051Stainless SteelRecord pending20SBDC053Stainless SteelRecord pending21SBDC067—Record pending22SBDC081Stainless SteelRecord pending23SBDC083Stainless SteelRecord pending24SBDC101Stainless SteelRecord pending25SBDC115Stainless SteelRecord pending26SKX007Stainless SteelRecord pending27SKX009Stainless SteelRecord pending28SKX011Stainless SteelRecord pending29SKX013Stainless SteelRecord pending30SKX015Stainless SteelRecord pending31SKX017Stainless SteelRecord pending32SKX023Stainless SteelRecord pending33SKX025Stainless SteelRecord pending34SKX031Stainless SteelRecord pending35SKX033Stainless SteelRecord pending36SKX173Stainless SteelRecord pending37SKX175Stainless SteelRecord pending
References without production years are catalogued but do not yet carry a verified production record. Those fields are added as they are confirmed rather than estimated.