Seiko Cal. 6630 - 364

Released in 1982, the Cal. 6630 with design code 364 was part of Seiko's domestic market collection. It features a Silver dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-0cd4004fca50]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1982

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