Seiko Cal. 6681 - 131

The Seiko 6681-131 represents an important milestone in Seiko's 1977 lineup. With its 20mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-2d822e35f117]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1977

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