Seiko Cal. 6620 - 598

This Spring Drive model from 1974 features a 39mm Gold-Plated case. With its 18mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-28d85dc73adc]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1974

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