Seiko Cal. 5620 - 620

The Seiko 5620-620 represents an important milestone in Seiko's 1978 lineup. With its 20mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-3d324b5fd9d6]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1978

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