SEIKO 5 SPORTS Field series Mechanical Watch Seiko Five Sports Made in Japan SRPJ81 Black Overseas Model [Seiko] Mid-size Men's [Used]

[Size and Weight] Case size (height x width x thickness): 44.4 x 36.4 x 12.5 (approx. mm), Strap: width approx. 16 mm (buckle side) ~ 18 mm (case side), lug width approx. 18 mm, wrist circumference (maximum) approx. 205 mm, weight: approx. 114 g [Materials] Case: Stainless steel, Band: Stainless steel, Crystal: Curved Hardlex crystal [Waterproof Performance] Enhanced water resistance for daily use (10 ATM) [Caliber No.] 4R36 Automatic winding (with manual winding, hacking function, date and day of the week calendar, 24 jewels) *The calendar is bilingual and is basically in English and Spanish, but other languages such as English and Arabic and English and French are also available and will be shipped randomly, so we cannot accept requests for specific languages. If you contact us before purchasing, we will let you know which languages are in stock. [Accessories] Japanese instruction manual (copy), foreign language instruction booklet, presentation box (SEIKO presentation box is included, but the design may vary with each shipment) This mid-size model with a 36.4mm case size is recommended for those with slender wrists. [Main Specifications] ● Caliber No.: 4R36 ● Movement: Mechanical automatic winding (with manual winding) ● Accuracy: +45 seconds to -35 seconds per day ● Power Reserve: Approximately 41 hours when fully wound ● Case Material: Stainless steel ● Crystal Material: Curved Hardlex ● Lumibrite: Yes (hands and indices) ● Band Material: Stainless steel ● Water Resistance: Enhanced water resistance for daily use (10 ATM) ● Magnetic Resistance: Yes ● Other Features: Double lock clasp, see-through screw-down case back (Due to manufacturing reasons, there may be individual differences in the orientation of the case back) ● Other Functions: Calendar (date and day of the week) function, 24 jewels, hacking function