Seiko Cal. 6657 - 909

The 6657-909 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6657 caliber with 36j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-c6052a2615e5]

Also known as: Bellmatic, Flighty

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1989

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