Seiko Cal. 6321 - 857

The Seiko 6321-857 represents an important milestone in Seiko's 1967 lineup. Powered by the 6321 caliber with 23j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-29ceb216890c]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1967

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