Seiko Cal. 6634 - 150

The Seiko 6634-150 represents an important milestone in Seiko's 1990 lineup. Powered by the 6634 caliber with 29j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-bd10c4708ed4]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1990

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