Seiko Cal. 6657 - 884

The Seiko 6657-884 represents an important milestone in Seiko's 1983 lineup. Powered by the 6657 caliber with 35j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-520b1324d93d]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1983

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