Seiko Cal. 6627 - 478

This Spring Drive model from 1975 features a 36mm PVD Black case. Powered by the 6627 caliber with 28j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-dae88857b480]

Also known as: Bellmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1975

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