Seiko Cal. 4513 - 861

This Spring Drive model from 1976 features a 38mm PVD Black case. Powered by the 4513 caliber with 28j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-0c8d59a0f39b]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1976

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