Seiko Cal. 6138 - 821

Released in 1974, the Cal. 6138 with design code 821 was part of Seiko's domestic market collection. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-6262aa8621ef]

Also known as: Tuna, Bellmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1974

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