Seiko Cal. 6321 - 686

The Seiko 6321-686 represents an important milestone in Seiko's 1965 lineup. Powered by the 6321 caliber with 27j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-cc9c7f049525]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1965

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