Seiko Cal. 6634 - 448

The Seiko 6634-448 represents an important milestone in Seiko's 1988 lineup. Powered by the 6634 caliber with 20j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-7849dc629a7e]

Also known as: Rally, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1988

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