Seiko Cal. 6630 - 556

The Seiko 6630-556 represents an important milestone in Seiko's 1979 lineup. It features a Cream dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-a0fc39e2dd0b]

Also known as: Monster, Goldfeather

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1979

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