Curvex CX Grand Central Tourbillion,1990 Seiko SQ 5Y23-8A69 Quartz 'Datejust' – Mornington Watches,Vintage Seiko QZ Quartz 38mm 0923-8010 Gents Watch, Japan made – Grab A Watch,1990 Seiko SQ 5Y23-8A69 Quartz 'Day Date' – Mornington Watches,Seiko Quartz 'SQ' [Ref: 5Y23-8A70] BMBY: April 1988 Serial: 840062 Case: 35mm Bracelet: fits up to 17cm Spanish / english calendar Made in Japan All original, newly serviced,