Seiko Cal. 6656 - 799

This Hand-Winding model from 1975 features a 44mm Two-Tone case. Powered by the 6656 caliber with 17j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-dd52740f62ba]

Also known as: Sportsmatic, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1975

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