Seiko Cal. 6645 - 861

This Spring Drive model from 1975 features a 43mm Hardlex-Coated Steel case. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-3efcc0081a6f]

Also known as: Panda, Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1975

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