Seiko Cal. 6686 - 764

The 6686-764 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6686 caliber with 25j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-a45b9706a163]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1978

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