Seiko Cal. 6646 - 835

This Spring Drive model from 1971 features a 38mm Stainless Steel case. It features a Champagne dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-47005722e7e8]

Also known as: Crown, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1971

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