

Seiko Prospex Speedtimer Automatic 39.5mm Steel Watch SPB515J1 Limited Edition at the Best Price. Official Retailer.
Featuring a 39.5mm super-hardened coated steel case with a screw-down caseback.
The champagne-colored dial features a black outer ring, where the seconds hand can be seen in reverse, tachymeter-style, with black indexes and hands and a Lumbrite coating. Between the 4 and 5 o'clock positions, there's a round date window.
All of this is protected by a curved sapphire crystal, which makes it scratch-resistant.
The movement is automatic, caliber 6R55, accurate to within ±15 seconds per month, with a 72-hour power reserve and 34 internal jewels. It also features a stop-seconds function.
It has a water resistance of 200m (20 ATM).
The bracelet is made of steel with a three-fold clasp with a push-button opening.
Data sheet