Seiko Cal. 6661 - 975

The 6661-975 is a sought-after Solar piece from Seiko's golden era. Powered by the 6661 caliber with 28j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-bdc294db1053]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1992

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