First Seiko diver model 1968/9 caliber 6106-8100 automatic day/date movement, slim `turtle` style steel case design, black dial , silver rotating bezel
17 jewels. SEIKO Mechanical Automatic ( Powered by wrist movement ). Seiko Cal.6106.
Functions:
Day/Date calendar, window display. Quick-set DATE function by pushing crown, quick set DAY by rotating crown past midnight and back to 9pm.
Satin finish. Solid Stainless steel.
Duo directional smooth rotating.
Black color. Applied polished steel tone markers.
Composite material (plastic or silicone or polyurethane). by Hadley Roma.
44.00mm. 38.00mm. 11.00mm.