Seiko Cal. 4488 - 840

The Seiko 4488-840 represents an important milestone in Seiko's 1979 lineup. Powered by the 4488 caliber with 20j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-485b89e78987]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1979

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