Seiko Cal. 6685 - 643

The Seiko 6685-643 represents an important milestone in Seiko's 1985 lineup. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-2e223090f152]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1985

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