Seiko Cal. 6661 - 387

The 6661-387 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6661 caliber with 35j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-87bc6ef0214e]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1970

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