Seiko Cal. 6691 - 916

The Seiko 6691-916 represents an important milestone in Seiko's 1980 lineup. It features a Cream dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-fae7851c453d]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1980

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