Seiko Cal. 6621 - 653

Released in 1978, the Cal. 6621 with design code 653 was part of Seiko's domestic market collection. It features a Cream dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-f97084802c13]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

19j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1978

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