Seiko. A rare stainless steel automatic diver's calendar bracelet watch Reference: 6215-7000 Date: Circa 1967 Movement: 35-jewel Cal.6215A automatic Dial: Black, applied luminous filled gilt dot hour markers, baton quarters, outer gilt minute divisions, date aperture at 3, gilt pointed baton hands with luminous inserts, centre seconds Case: Brushed and polished monobloc, bi-directional ratcheted bezel with black insert, crown at 4, No.7300058 Strap/Bracelet: Later stainless steel rice link Buckle/Clasp: Signed folding clasp Signed: Case, dial & movement Size: 44mm Accompaniments: Seiko service paperwork dated July 1997 Footnotes: In 1967 Seiko introduced the Reference 6215-7000 featuring water resistance up to 300m, a monobloc case and the crown placed at 4 o'clock. All elements that would become the hallmark for Seiko diving timepieces. Produced for just one year, the 6215-7000 is extremely scare on the secondary market thus making this a rare opportunity to acquire one. For further information on this lot please visit Bonhams.com