Seiko Cal. 6677 - 531

The Seiko 6677-531 represents an important milestone in Seiko's 1984 lineup. Powered by the 6677 caliber with 28j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-58ed6c7d6bc3]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1984

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