Seiko Cal. 6656 - 320

The Seiko 6656-320 represents an important milestone in Seiko's 1989 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-3ea4a94ecc4f]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1989

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