Overview
Based on Seiko's Speedtimer models from the past, the SPB513 combines sports timing heritage with modern mechanical precision. The hairline-finish silver dial features a countdown timer ring for measuring event duration, accented by an orange-tipped second hand, date calendar, and LumiBrite hands and markers for low-light visibility. Inside is a 24-jewel automatic movement beating at 21,600 vibrations per hour with a 72-hour power reserve and manual winding capability. The stainless steel case with super-hard coating is the slimmest of any Seiko 6R model, flowing seamlessly into the multi-row bracelet, with a curved sapphire crystal, screwdown crown and caseback, and 200-meter water resistance.
Specifications:
- Movement Caliber Number: 6R55
- Movement Type: Automatic with manual winding
- Power reserve: Approx. 72 hours(3 days)
- Jewels: 24
- Case Material: Stainless steel
- Case Size: Thickness:12.0mm
- Diameter:39.5mm
- Lug-to-lug:44.5mm
- Crystal: Sapphire crystal
- Band Material: Stainless Steel
- Distance between lugs: 20
