Seiko Cal. 4510 - 381

The Seiko 4510-381 represents an important milestone in Seiko's 1988 lineup. Powered by the 4510 caliber with 20j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-cefb938f4faf]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1988

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