Seiko Cal. 6391 - 866

The 6391-866 is a sought-after Automatic piece from Seiko's golden era. With its 19mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-abfeefd04631]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1986

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