Seiko Cal. 6386 - 821

The Seiko 6386-821 represents an important milestone in Seiko's 1973 lineup. Powered by the 6386 caliber with 21j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-22d0749397cc]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1973

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