Seiko Cal. 6630 - 288

The Seiko 6630-288 represents an important milestone in Seiko's 1986 lineup. Powered by the 6630 caliber with 22j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-4b7098133048]

Also known as: Helmet, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1986

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