Seiko Cal. 4577 - 527

This Automatic model from 1977 features a 35mm PVD Black case. Powered by the 4577 caliber with 27j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-5b9a1659ae52]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1977

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