Seiko SPEEDTIMER 145th Anniversary SBEC031/SRQ059 Limited Edition Mechanical Chronograph Watch 2026.2 releaseProduct Highlights Movement System: Automatic mechanical (with manual winding function) Movement Reference Number 8R48 Movement System Automatic mechanical (with manual winding function) Accuracy +25 seconds to 15 seconds per day Power Reserve Approximately 45 hours when fully wound Number of Jewels 34 jewels Chronograph Function Stopwatch function (30 minute and 12 hour chronograph) Stop Second Function Yes Date Display Function Yes Case Material