Seiko Cal. 5618 - 766

Released in 1981, the Cal. 5618 with design code 766 was part of Seiko's domestic market collection. It features a Cream dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-9570138b0a67]

Also known as: Monster, Rally

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1981

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