Seiko Cal. 6656 - 974

The Seiko 6656-974 represents an important milestone in Seiko's 1979 lineup. It features a Navy dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-d11d14b1619b]

Also known as: Monster, Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1979

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