Seiko Cal. 6634 - 431

This Automatic model from 1975 features a 34mm Hardlex-Coated Steel case. Powered by the 6634 caliber with 28j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-bc3ed2ccbc21]

Also known as: Flighty

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1975

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