Seiko Prospex Speedtimer Watch - SPB513J DNR The case of the watch

The case of the watch is 27mm and made from stainless-steel as is the matching band

5ct Round Brilliant Cut LAB GROWN diamond in a four claw setting

-41m Case Size

40 Hour Power Reserve

sub-dials displaying chronograph minutes

Seiko Prospex Speedtimer Watch - SPB513J DNR The case of the watchPROSPEX: Seiko Prospex challenges every limit, with a collection of timepieces for sports lovers and adventure seekers whether in the water, in the sky or on land. Since launching Japans first divers watch in 1965, Seikos innovative technology has changed global standards. We are constantly striving to bring ever greater reliability and safety to both professional and recreational divers. SPEEDTIMER SERIES: In the 1960s, Seiko announced itself on the