Seiko Cal. 4428 - 510

The Seiko 4428-510 represents an important milestone in Seiko's 1999 lineup. Powered by the 4428 caliber with 18j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-251dc1c8cdf2]

Also known as: Samurai, Emperor

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1999

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