Seiko Cal. 6631 - 847

The Seiko 6631-847 represents an important milestone in Seiko's 1984 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-76ea5127f13c]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1984

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