Seiko Prospex SBDC217 Speed Timer Mechanical Automatic Core Shop Exclusive Limited Edition Watch Men's PROSPEX SPEEDTIMER

Seiko Prospex SBDC217 Speed Timer Mechanical Automatic Core Shop Exclusive Limited Edition Watch Men's PROSPEX SPEEDTIMER

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A new design line equipped with a 6R caliber that combines an inverted ring with a countdown scale and the traditional flow shape of Seiko sports watches established in the 70s. The 6R55 caliber is mounted in a 20 ATM waterproof case and pursues the functionality and reliability required for motor sports (rally) timing performed under harsh environments and conditions. The thin case, which is water resistant to 20 ATM, achieves both excellent wearability and waterproofness. The inverted ring with a countdown scale can measure the countdown for any time, such as remaining time or target time until work is completed. Also, by filling the reference position marker on the inverting ring with Lumi Bright, visibility in dark places is ensured. /Caliber: 6R55/ Drive period: lasts about 72 hours at maximum winding/ Accuracy: daily difference +25 seconds to -15 sec/ Number of stones 24 stones/ Hand stop function/ Reinforced waterproof for everyday use (20 ATM)/with calendar (date) function/Lumi Bright: Yes (needle/index/dial ring) /Magnetic resistance: Yes/Screwback/Internal rotation ring with countdown scale/Band Adjust C Ring System/MADE IN JAPAN