SRQ047J1 SEIKO PROSPEX SPEEDTIMER MECHANICAL CHRONOGRAPH The SRQ047J1 Seiko Prospex SPEEDTIMER Mechanical Chronograph, is from the SPEEDTIMER Collection. This particular model is inspired by the 1972 creation with design cues inherited from that model; like the highly legible panda-style dial with an orange-tipped chronograph seconds hand. New features added to the watch like the case and bracelet to create a classic and refined structure to this classic . History of the SPEEDTIMER This collection of watches was inspired by the 1960's Chronograph Watch that led Seiko to be endorsed by the international sports federation as the time piece for world sporting events. Central to this success was a range of stopwatches that incorporated Seiko's innovative "heart-shaped cam" mechanism, a feature which delivered a level of precision once thought unachievable by manual sports timing devices. Then, in 1969, Seiko introduced the Seiko Speedtimer with the innovative Caliber 6139. It was the world's first automatic chronograph with a column wheel and vertical clutch, two devices that delivered real improvements in the measurement of elapsed time in a wristwatch and are still a prerequisite in high functionality chronographs. Today, A new series of six watches inspired by the Speedtimer and Seiko's rich and continuing tradition of sports timing join the Prospex collection.A limited edition watch with a new automatic chronograph movement pays faithful tribute to the design of the 1964 stopwatch, while a second version with the same caliber and a series of four solar chronographs complete the range. SPECIFICATIONS MOVEMENT CALIBER NUMBER 8R48 MOVEMENT TYPE AUTOMATIC WITH MANUAL WINDING PRECISION +25 TO - 15 SECONDS PER DAY POWER RESERVE APPROX. 45 HOURS JEWELS 34 FUNCTIONS CHRONOGRAPH WITH 30 MINS & 12 HOURS STOP SECONDS HAND FUNCTION DATE DISPLAY CASE/ BAND CASE MATERIAL STAINLESS STEEL (SUPER HARD COATING) CASE SIZE THICKNESS: 14.6 MMDIAMETER: 42.0 MMLUG-TO-LUG: 49.5 MM CRYSTAL DUAL-CURVED SAPPHIRE CRYSTAL CRYSTAL COATING ANTI-REFLECTIVE COATING ON INNER SURFACE LUMIBRITE LUMIBRITE ON HANDS AND INDEX(ES) CLASP THREE-FOLD CLASP WITH PUSH BUTTON RELEASE DISTANCE BETWEEN LUGS 20 OTHER DETAILS WATER RESISTANCE 10 BAR WEIGHT 183.0G FEATURES SCREW CASE BACK