Seiko Cal. 4559 - 987

This Spring Drive model from 1994 features a 41mm Two-Tone case. Powered by the 4559 caliber with 25j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-47dcebcd1681]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1994

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