Seiko Cal. 5657 - 904

Released in 1976, the Cal. 5657 with design code 904 was part of Seiko's domestic market collection. It features a Cream dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-ae486fb0281c]

Also known as: Monster, Navigator

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1976

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