Seiko Cal. 6677 - 978

The 6677-978 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6677 caliber with 17j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-42fccdc796fc]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1989

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