Seiko Cal. 6144 - 987

The Seiko 6144-987 represents an important milestone in Seiko's 1991 lineup. Powered by the 6144 caliber with 20j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-c05d9c5e376e]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1991

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