Seiko Cal. 5618 - 977

The Seiko 5618-977 represents an important milestone in Seiko's 1971 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-b06f5dec80ce]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1971

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