Seiko Cal. 6620 - 237

The Seiko 6620-237 represents an important milestone in Seiko's 1973 lineup. It features a Black dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-d848aba88244]

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1973

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