SBSA121-Watch-SEIKO-5-SPORTS-Seiko-5-Sports-Mechanical-Automatic-Self-Winding-With-Hand-Winding-

・Caliber No. 4R36

・Drive system: Mechanical, automatic (with manual winding)

・Accuracy: +45 to -35 seconds per day

・Drive period: Approximately 41 hours when fully wound

・Number of jewels: 24 jewels

・Second hand stop function

・Calendar (date and day of the week) function

・Case material: Stainless steel, case back: Stainless steel and glass

・Case size: Thickness: 13.2mm, width: 39.4mm, height: 48.1mm

・Glass material: Curved Hardlex

・Lumibrite: Yes (hands and indexes)

・Enhanced water resistance for everyday use (10 bar)

・Magnetic resistance: Yes

・Weight: 75.0g

・See-through screw back

・Box included

・1-year warranty card