Seiko Cal. 6660 - 986

Released in 1975, the Cal. 6660 with design code 986 was part of Seiko's domestic market collection. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-d989ff41bcd7]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1975

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