Seiko Cal. 5621 - 161

The Seiko 5621-161 represents an important milestone in Seiko's 1978 lineup. With its 18mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-725de9ce271c]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1978

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