Seiko Cal. 5644 - 486

The Seiko 5644-486 represents an important milestone in Seiko's 1970 lineup. Powered by the 5644 caliber with 17j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-0b6fea0eb126]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1970

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