Seiko Cal. 6644 - 198

The Seiko 6644-198 represents an important milestone in Seiko's 1975 lineup. Powered by the 6644 caliber with 33j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-407408966f08]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1975

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