Seiko Cal. 4577 - 211

This Spring Drive model from 1966 features a 36mm PVD Black case. Powered by the 4577 caliber with 27j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-cd781eec9ea2]

Also known as: Panda, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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