Krishnan Nair & Sons - KNS Watch Dealers - Seiko Chronograph Perpetual 7T86 Perpetual combines the beauty of a classic mechanical perpetual calendar, correct until February 28, 2100 and differentiated itself from
How to set time,date & alarm on Seiko Perpetual Calendar SPC133P1 || Caliber 7T86. - YouTube
SEIKO Perpetual Calander 7T86 All Reset and Time Date Alarm Setting | SolimBD - YouTube