Seiko Cal. 4487 - 969

The 4487-969 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4487 caliber with 25j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-c0be9a8af7e7]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1977

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