Seiko Prospex HBC004 Speedtimer Grey Dial Countdown Automatic

A mechanical SPEEDTIMER model featuring a countdown timerBy operating the 4 o'clock crown, a countdown timer function can be used to measure anything from the intervals of a motorsports race to moments from daily life. The embossed leather strap evokes the spirit of classic cars.The orange accent that appears on the dial ring is also used for the seconds hand to enhance legibility during instantaneous measurements. The dial color also enhances legibility while evoking the spirit of classic cars.Specifications:Movement:Caliber Number: 6R55Movement Type: Automatic with manual windingPrecision: +25 to -15 seconds per dayPower reserve: Approx. 72 hours(3 days)Jewels: 24Functions: Stop second hand functionCase/Band:Case Material: Stainless steel (super hard coating)Case Size: Thickness: 12.0mm Diameter: 39.5mm Lug-to-lug: 44.5mmCrystal: Curved sapphire crystalCrystal Coating: Anti-reflective coating on inner surfaceLumiBrite: LumiBrite on hands and index(es)Band Material: Cow leatherClasp: Three-fold clasp with push button releaseDistance between lugs: 20 mmOther Details:Water Resistance: 20 barMagnetic Resistance: 4,800 A/mFeatures: Inner rotating ring with countdown scale Screw case back