Seiko replacement movement for SRP777 or similar in series. Movement: 4R36Includes : day-date disc and plastic spacer. # 25-779808552-TWSeiko SRP777 movement 4R36SKU: SRP777 movement 4R36US$95.60PriceQuantity*Add to CartBuy NowPRODUCT INFOMovement: 4R36 Includes : day-date disc and plastic spacer. RETURN & REFUND POLICYParts are not returnable. SHIPPING INFOShipping by postal service is free worldwide. Delivery time is 14 to 20 working days by registered airmail. For faster service we have the DHL express ( 2 working days ) for US$36 for most countries with exception of certain remote areas/region.