Seiko Cal. 0770 - 930

Released in 1968, the Cal. 0770 with design code 930 was part of Seiko's domestic market collection. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-eba8de529093]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1968

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