Seiko Cal. 4555 - 387

The Seiko 4555-387 represents an important milestone in Seiko's 1991 lineup. Powered by the 4555 caliber with 22j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-b289aefd73a9]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1991

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