Seiko Cal. 6661 - 604

Released in 1974, the Cal. 6661 with design code 604 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-1811eef29da9]

Also known as: Shogun, Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1974

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