Seiko Cal. 6648 - 433

The 6648-433 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6648 caliber with 29j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-331b3a4db0bf]

Also known as: Tuna, Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1968

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