Seiko Cal. 6284 - 721

The Seiko 6284-721 represents an important milestone in Seiko's 1987 lineup. Powered by the 6284 caliber with 34j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-f00e592ed355]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1987

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