Seiko Cal. 5618 - 987

The Seiko 5618-987 represents an important milestone in Seiko's 1969 lineup. It features a Green dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-03a68753b6d8]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1969

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