Seiko Cal. 5664 - 342

The Seiko 5664-342 represents an important milestone in Seiko's 1991 lineup. Powered by the 5664 caliber with 22j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-0e0253458ed3]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1991

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