Seiko Cal. 4577 - 121

The Seiko 4577-121 represents an important milestone in Seiko's 1972 lineup. Powered by the 4577 caliber with 27j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-7ef33c6baec3]

Also known as: Goldfeather, Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1972

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