Since signing a sponsorship agreement with World Athletics in 1985, Seiko has been the official timer of the world's most prestigious track and field event 18 consecutive times.
- Limited edition of 4,000 pieces
- Japan Domestic Model is ONLY 300 pieces
- Caliber Number: 8A50
- Movement Type: Solar
- Precision: ±15 seconds per month
- Power reserve: Operating for approx. 6 months (when fully charged)
- Overcharge prevention function
- Chronograph up to 60 minutes in 1/100 second increments
- Battery life warning function
- Case Material: Stainless steel (hard coating)
- Case Size: Thickness:12.9mm, Diameter:42.0mm, Lug-to-lug:48.3mm
- Crystal: Curved sapphire crystal
- Crystal Coating: Anti-reflective coating on inner surface
- LumiBrite: Lumibrite on hands and index(es)
- Clasp: Three-fold clasp with push button release
- Distance between lugs: 20mm
- Water Resistance: 10 bar
- Weight: 152.0g
- LIMITED EDITION on the case back
- Serial number engraved on the case back
- Screw case back
