Seiko Cal. 6677 - 904

The Seiko 6677-904 represents an important milestone in Seiko's 1985 lineup. Powered by the 6677 caliber with 29j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-933f0ee17237]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1985

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