Seiko Cal. 5618 - 745

The Seiko 5618-745 represents an important milestone in Seiko's 1971 lineup. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-af3533ff05be]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1971

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