Seiko Cal. 5664 - 216

The Seiko 5664-216 represents an important milestone in Seiko's 1981 lineup. Powered by the 5664 caliber with 24j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-b1ef854a26a3]

Also known as: Panda, Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1981

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