Seiko Cal. 6686 - 864

This Hand-Winding model from 1980 features a 39mm Two-Tone case. Powered by the 6686 caliber with 28j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-1cc8e7aa2fc4]

Also known as: Sportsmatic, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

28j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1980

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