Seiko Cal. 6681 - 933

The Seiko 6681-933 represents an important milestone in Seiko's 1981 lineup. Powered by the 6681 caliber with 33j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-cee3984a0dbf]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1981

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