Seiko Cal. 6628 - 904

The Seiko 6628-904 represents an important milestone in Seiko's 1979 lineup. Powered by the 6628 caliber with 36j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-7e4f880199bf]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1979

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