Seiko Cal. 6657 - 301

The Seiko 6657-301 represents an important milestone in Seiko's 1984 lineup. Powered by the 6657 caliber with 28j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-4dc4be9ffa05]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1984

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