Seiko Cal. 6321 - 766

Released in 1970, the Cal. 6321 with design code 766 was part of Seiko's domestic market collection. Powered by the 6321 caliber with 34j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-291204b7ad79]

Also known as: Tuna, Bullhead

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1970

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