Seiko Cal. 0728 - 641

This Automatic model from 1973 features a 34mm Gold-Plated case. Powered by the 0728 caliber with 20j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-76ecb7c384a9]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1973

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