Seiko Presage SPB303 Sharp Edge GMT Limited Edition Blue jazzmaster direct timing start from the

direct timing start from the timekeeping mode Timer

The telemeter and tachymeter display were first combined in a single Junghans chronograph in 1951

auto cumulative ascent and descent

Stainless steel ground/polished

Case: 42mm

Seiko Presage SPB303 Sharp Edge GMT Limited Edition Blue jazzmaster direct timing start from theCaliber Number 6R64 Movement Type Automatic with manual winding Precision +25 to 15 seconds per day Power reserve Approx. 45 hours Jewels 29 Functions 24 hour hand Date hand Power reserve indicator Calendar linked time difference adjustment function Stop seconds hand function Case Band Case Size Thickness: 13. 7mm Diameter: 42. 2mm Lug to lug: 49. 2mm Crystal Sapphire crystal Crystal Coating Anti reflective coating on inner surface LumiBrite LumiBrite