Seiko Cal. 6166 - 623

The 6166-623 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6166 caliber with 23j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-bf56020e0166]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1979

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