Seiko Cal. 5644 - 217

The Seiko 5644-217 represents an important milestone in Seiko's 1972 lineup. Powered by the 5644 caliber with 25j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-a5884e58428a]

Also known as: Sea Horse, Crown

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

35mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1972

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