SEIKO PROSPEX Speedtimer Mechanical Automatic SBDC215 Core Shop Limited, Cal. 6R55, Countdown Bezel, 20 ATM, Made in Japan

A motorsport-inspired Speedtimer combining a countdown rotating bezel with Seiko's 1970s flow-shape case. The 6R55 movement and 20 bar water resistance deliver reliability for rally-grade timing.

■ Condition Brand New

■ Exterior • 1970s flow-shape case • Inner rotating bezel with countdown scale and LumiBrite markers • Stainless steel case and bracelet

■ Key Features • Automatic caliber 6R55, approx. 72-hour power reserve • 20 ATM water resistance • Date, LumiBrite, anti-magnetic • Made in Japan

■ Specifications • Model: SBDC215 • Accuracy: +25 to -15 seconds per day • Material: Stainless steel • Battery Life: Mechanical (no battery) – power reserve approx. 72 hours