Seiko Cal. 6686 - 409

The Seiko 6686-409 represents an important milestone in Seiko's 1973 lineup. It features a Black dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-076b47538e8a]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1973

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