- Ref: 3823 - 7001 -Serial No/Year: 520XXX / 1975 - Case: 37mm diameter, 18mm lug width(integrated), 12mm thickness. Stainless Steel -Caliber: 3823 quartz with Day and Date (Kanji/English) -Power Reserve:2 year battery -Crystal: Unknown -Accuracy:+/- 5 Seconds per Month (When New) -Band: Original Seiko Bracelet ~ 7” -Water Resistant: No -Condition: Good condition Moderate scratches on the case/bracelet and a few small scratches on the crystal -Warranty:90 days - Made in Japan