Seiko Cal. 6391 - 765

The 6391-765 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6391 caliber with 29j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-bfb371421830]

Also known as: Silverwave

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1990

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