Seiko Cal. 6686 - 320

The 6686-320 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6686 caliber with 31j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-3c948b0c73c3]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1975

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