Seiko Cal. 6328 - 745

This Spring Drive model from 1970 features a 40mm Hardlex-Coated Steel case. Powered by the 6328 caliber with 31j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-1d8a3d44926e]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1970

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