Seiko Cal. 6685 - 646

Released in 1970, the Cal. 6685 with design code 646 was part of Seiko's domestic market collection. With its 20mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-9cf5aa9b252f]

Also known as: Panda, Helmet

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1970

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