Seiko Cal. 4428 - 930

This Quartz model from 1967 features a 36mm Stainless Steel case. Powered by the 4428 caliber with 18j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-568d4e910e86]

Also known as: Turtle, Bullhead

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

18j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1967

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