Seiko Cal. 6630 - 278

The Seiko 6630-278 represents an important milestone in Seiko's 1986 lineup. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-e8ca56f909bc]

Also known as: Sumo, Bullhead

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1986

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