https://tbni.blog/2018/06/25/seiko-black-series-srpc49j1-unboxing-the-ninja-turtle/#:~:text=This%20SRPC49K1%20or%20SRPC49J1%20has,a%2041%20hour%20power%20reserve.

Seiko recently announced three new limited edition “Black Series” Prospex dive watches, which were released in the first quarter of 2018.

These three Prospex watches take existing vintage designs and redo them in a modern and popular black scheme – a design idea that is unlikely to fail.

Aggressive, legible, and handsome, the black dials, tan hour markers, and white & orange hands (done in Seiko’s Lumibrite) keep from messing up the original aesthetic of the pieces.

Seiko state that the Black Series watches are inspired by night diving and are designed to achieve maximum legibility.

With a reported (but unnumbered) sole batch of 300, these limited editions are sure to be much sought after by any Seiko collector. Some have reported a mere 30 items were initially made available to the UK – that however I can not confirm.

Of these three designs the Black Ninja Turtle (SRPC49K1 – or the much rarer Japanese made – SRPC49J1) proved to be the most popular and almost instantly sold out.